Find the Predecessor: Identifying the Number Before 4030

To solve this problem, let's follow these steps:

• Step 1: Identify the number provided in the problem. In this case, the number is 4030.
• Step 2: Use the formula for finding a predecessor:
  $\text{Predecessor of } 4030 = 4030 - 1$.
• Step 3: Perform the subtraction to find the predecessor:
  $4030 - 1 = 4029$.

Therefore, the predecessor of the number 4030 is $\textbf{4029}$.

Therefore, the solution to the problem is $4029$.