Finding the Fourth Proportional to 2,499.57, 3,453.17 and 2,480.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499.57 : 3,453.17 = 2,480.13 : x
2. Step 2: Convert to fraction form
   2,499.57/3,453.17 = 2,480.13/x
3. Step 3: Cross multiply
   2,499.57x = 3,453.17 × 2,480.13
4. Step 4: Simplify right side
   2,499.57x = 8,564,298.11
5. Step 5: Solve for x
   x = 8,564,298.11/2,499.57
6. Step 6: Final answer
   x = 3,426.31