We need to find the missing percentage in the equation: $x\%$ of $741 = 400.14$.

1. Problem Description

We need to find the missing percentage in the equation:

$x\%$ of $741 = 400.14$.

2. Solution Steps

The equation $x\%$ of $741 = 400.14$ can be written as:

$\frac{x}{100} \times 741 = 400.14$

To find $x$, we can multiply both sides by $100$ and then divide by $741$:

$x = \frac{400.14 \times 100}{741}$

$x = \frac{40014}{741}$

$x = 54$

3. Final Answer

54