Finding the Fourth Proportional to 682,456.88, 941,644.52 and 392,104.04

Step by Step Solution

1. Step 1: Write the proportion equation
   682,456.88 : 941,644.52 = 392,104.04 : x
2. Step 2: Convert to fraction form
   682,456.88/941,644.52 = 392,104.04/x
3. Step 3: Cross multiply
   682,456.88x = 941,644.52 × 392,104.04
4. Step 4: Simplify right side
   682,456.88x = 369,222,620,535.86
5. Step 5: Solve for x
   x = 369,222,620,535.86/682,456.88
6. Step 6: Final answer
   x = 541,019.71