How does the characterization of Fortunato affect the plot of the story in “The Cask of Amontillado”?

In Edgar Allan Poe's "The Cask of Amontillado," the characterization of Fortunato plays a crucial role in driving the plot forward. Here’s how:

1. Arrogance and Pride: Fortunato's arrogance and pride in his wine connoisseurship make him susceptible to Montresor's manipulation. His overconfidence blinds him to the danger he is in, propelling the plot as he eagerly follows Montresor into the catacombs.

2. Gullibility: Fortunato's gullibility is evident as he easily falls for Montresor's bait about the rare Amontillado. This trait is essential for the plot, as it allows Montresor to lure him deeper into the catacombs without suspicion.

3. Intoxication: Fortunato's drunken state further contributes to his vulnerability. His impaired judgment and inability to recognize the threat Montresor poses are critical in advancing the plot towards its climax.

4. Social Status: Fortunato's social standing and wealth add a layer of irony to the story. Despite his high status, he is ultimately powerless against Montresor's meticulously planned revenge, highlighting the theme of the fallibility of human pride.

Final Answer: Fortunato's characterization as arrogant, gullible, and intoxicated directly influences the plot by making him an easy target for Montresor's revenge, driving the narrative towards its dark and inevitable conclusion.