Finding the Fourth Proportional to 851,132.62, 1,174,562.72 and 469,165.78

Step by Step Solution

1. Step 1: Write the proportion equation
   851,132.62 : 1,174,562.72 = 469,165.78 : x
2. Step 2: Convert to fraction form
   851,132.62/1,174,562.72 = 469,165.78/x
3. Step 3: Cross multiply
   851,132.62x = 1,174,562.72 × 469,165.78
4. Step 4: Simplify right side
   851,132.62x = 551,064,634,687.72
5. Step 5: Solve for x
   x = 551,064,634,687.72/851,132.62
6. Step 6: Final answer
   x = 647,448.61