Finding the Fourth Proportional to 916,710.72, 1,373,659.56 and 383,940.24

Step by Step Solution

1. Step 1: Write the proportion equation
   916,710.72 : 1,373,659.56 = 383,940.24 : x
2. Step 2: Convert to fraction form
   916,710.72/1,373,659.56 = 383,940.24/x
3. Step 3: Cross multiply
   916,710.72x = 1,373,659.56 × 383,940.24
4. Step 4: Simplify right side
   916,710.72x = 527,403,181,144.69
5. Step 5: Solve for x
   x = 527,403,181,144.69/916,710.72
6. Step 6: Final answer
   x = 575,321.28