Finding the Fourth Proportional to 1,150,892.76, 1,725,135.21 and 392,468.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150,892.76 : 1,725,135.21 = 392,468.43 : x
2. Step 2: Convert to fraction form
   1,150,892.76/1,725,135.21 = 392,468.43/x
3. Step 3: Cross multiply
   1,150,892.76x = 1,725,135.21 × 392,468.43
4. Step 4: Simplify right side
   1,150,892.76x = 677,061,107,406.42
5. Step 5: Solve for x
   x = 677,061,107,406.42/1,150,892.76
6. Step 6: Final answer
   x = 588,292.09