Finding the Fourth Proportional to 7,040.08, 10,562.88 and 2,658.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,040.08 : 10,562.88 = 2,658.72 : x
2. Step 2: Convert to fraction form
   7,040.08/10,562.88 = 2,658.72/x
3. Step 3: Cross multiply
   7,040.08x = 10,562.88 × 2,658.72
4. Step 4: Simplify right side
   7,040.08x = 28,083,740.31
5. Step 5: Solve for x
   x = 28,083,740.31/7,040.08
6. Step 6: Final answer
   x = 3,989.12