Finding the Fourth Proportional to 7,074.72, 10,613.76 and 2,144.64

Step by Step Solution

1. Step 1: Write the proportion equation
   7,074.72 : 10,613.76 = 2,144.64 : x
2. Step 2: Convert to fraction form
   7,074.72/10,613.76 = 2,144.64/x
3. Step 3: Cross multiply
   7,074.72x = 10,613.76 × 2,144.64
4. Step 4: Simplify right side
   7,074.72x = 22,762,694.25
5. Step 5: Solve for x
   x = 22,762,694.25/7,074.72
6. Step 6: Final answer
   x = 3,217.47