Here are 4 figures: 9, 7, 4, 5. Add together the 2 middle figures and add to the largest.

Step 1: Identify the two middle figures.
The four figures are 9, 7, 4, 5.
The two middle figures are 7 and 4.

Step 2: Add together the two middle figures.
$7 + 4$
Substitute the values:
$7 + 4 = 11$

Step 3: Identify the largest figure.
Compare: $9$, $7$, $4$, $5$.
The largest is $9$.

Step 4: Add the sum from Step 2 to the largest figure.
$11 + 9$
Substitute the values:
$11 + 9 = 20$

The answer is $\boxed{20}$.