Analyze the puzzle below and determine the value of X.

Analyze the puzzle below and determine the value of $X$.

Each rectangle is divided into four regions by diagonals, with numbers at the four outer regions and a central number:

Row 1:

• Box 1: Top: 5, Bottom: 4, Left: 12, Right: 6 $\to$ Center: 5
• Box 2: Top: 4, Bottom: 3, Left: 9, Right: 6 $\to$ Center: 5
• Box 3: Top: 5, Bottom: 2, Left: 4, Right: 3 $\to$ Center: $X$

Row 2:

• Box 4: Top: 11, Bottom: 5, Left: 13, Right: 4 $\to$ Center: 3
• Box 5: Top: 7, Bottom: 9, Left: 3, Right: 7 $\to$ Center: 4
• Box 6: Top: 9, Bottom: 4, Left: 8, Right: 6 $\to$ Center: 1

What is the value of $X$?