Finding the Fourth Proportional to 947,131.56, 1,307,060.82 and 517,439.52

Step by Step Solution

1. Step 1: Write the proportion equation
   947,131.56 : 1,307,060.82 = 517,439.52 : x
2. Step 2: Convert to fraction form
   947,131.56/1,307,060.82 = 517,439.52/x
3. Step 3: Cross multiply
   947,131.56x = 1,307,060.82 × 517,439.52
4. Step 4: Simplify right side
   947,131.56x = 676,324,923,311.61
5. Step 5: Solve for x
   x = 676,324,923,311.61/947,131.56
6. Step 6: Final answer
   x = 714,077.06