Finding the Fourth Proportional to 2,124.18, 2,931.55 and 1,240.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,124.18 : 2,931.55 = 1,240.27 : x
2. Step 2: Convert to fraction form
   2,124.18/2,931.55 = 1,240.27/x
3. Step 3: Cross multiply
   2,124.18x = 2,931.55 × 1,240.27
4. Step 4: Simplify right side
   2,124.18x = 3,635,898.86
5. Step 5: Solve for x
   x = 3,635,898.86/2,124.18
6. Step 6: Final answer
   x = 1,711.67