Examine Sequence: First, let's look at the sequence: 87,89,91,92. We need to find the pattern.
Check for Pattern Continuation: The difference between 87 and 89 is 2. Let's check if this pattern continues.
Identify Adding Pattern: The difference between 89 and 91 is also 2. So, it seems like we're adding 2 each time.
Identify Mistake: But wait, the difference between 91 and 92 is only 1. That's not right, it should be 2 if we're adding 2 each time. So, there's a mistake here.
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