Finding the Fourth Proportional to 947,132.42, 1,307,043.61 and 517,419.72

Step by Step Solution

1. Step 1: Write the proportion equation
   947,132.42 : 1,307,043.61 = 517,419.72 : x
2. Step 2: Convert to fraction form
   947,132.42/1,307,043.61 = 517,419.72/x
3. Step 3: Cross multiply
   947,132.42x = 1,307,043.61 × 517,419.72
4. Step 4: Simplify right side
   947,132.42x = 676,290,137,420.44
5. Step 5: Solve for x
   x = 676,290,137,420.44/947,132.42
6. Step 6: Final answer
   x = 714,039.69