Finding the Fourth Proportional to 662,890.42, 914,404.06 and 417,779.14

Step by Step Solution

1. Step 1: Write the proportion equation
   662,890.42 : 914,404.06 = 417,779.14 : x
2. Step 2: Convert to fraction form
   662,890.42/914,404.06 = 417,779.14/x
3. Step 3: Cross multiply
   662,890.42x = 914,404.06 × 417,779.14
4. Step 4: Simplify right side
   662,890.42x = 382,018,941,799.31
5. Step 5: Solve for x
   x = 382,018,941,799.31/662,890.42
6. Step 6: Final answer
   x = 576,292.75