Finding the Fourth Proportional to 866,978.31, 1,196,670.74 and 504,472.43

Step by Step Solution

1. Step 1: Write the proportion equation
   866,978.31 : 1,196,670.74 = 504,472.43 : x
2. Step 2: Convert to fraction form
   866,978.31/1,196,670.74 = 504,472.43/x
3. Step 3: Cross multiply
   866,978.31x = 1,196,670.74 × 504,472.43
4. Step 4: Simplify right side
   866,978.31x = 603,687,387,611.98
5. Step 5: Solve for x
   x = 603,687,387,611.98/866,978.31
6. Step 6: Final answer
   x = 696,311.98