Finding the Fourth Proportional to 2,124.78, 2,932.25 and 1,240.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,124.78 : 2,932.25 = 1,240.26 : x
2. Step 2: Convert to fraction form
   2,124.78/2,932.25 = 1,240.26/x
3. Step 3: Cross multiply
   2,124.78x = 2,932.25 × 1,240.26
4. Step 4: Simplify right side
   2,124.78x = 3,636,746.18
5. Step 5: Solve for x
   x = 3,636,746.18/2,124.78
6. Step 6: Final answer
   x = 1,711.59