Finding the Fourth Proportional to 865,672.72, 1,194,591.34 and 478,468.32

Step by Step Solution

1. Step 1: Write the proportion equation
   865,672.72 : 1,194,591.34 = 478,468.32 : x
2. Step 2: Convert to fraction form
   865,672.72/1,194,591.34 = 478,468.32/x
3. Step 3: Cross multiply
   865,672.72x = 1,194,591.34 × 478,468.32
4. Step 4: Simplify right side
   865,672.72x = 571,574,107,654.72
5. Step 5: Solve for x
   x = 571,574,107,654.72/865,672.72
6. Step 6: Final answer
   x = 660,265.82