Finding the Fourth Proportional to 3,419.57, 5,124.72 and 2,490.75

Step by Step Solution

1. Step 1: Write the proportion equation
   3,419.57 : 5,124.72 = 2,490.75 : x
2. Step 2: Convert to fraction form
   3,419.57/5,124.72 = 2,490.75/x
3. Step 3: Cross multiply
   3,419.57x = 5,124.72 × 2,490.75
4. Step 4: Simplify right side
   3,419.57x = 12,764,391.67
5. Step 5: Solve for x
   x = 12,764,391.67/3,419.57
6. Step 6: Final answer
   x = 3,732.75