We are given the equation "72% of x = 385.2" and need to find the value of x.

1. Problem Description

We are given the equation "72% of x = 385.2" and need to find the value of x.

2. Solution Steps

Let x be the missing number. The equation can be written as:

$0.72 * x = 385.2$

To find x, we can divide both sides of the equation by 0.72:

$x = \frac{385.2}{0.72}$

$x = 535$

3. Final Answer

The missing number is 535.