Finding the Fourth Proportional to 947,522.56, 1,307,584.56 and 517,809.28

Step by Step Solution

1. Step 1: Write the proportion equation
   947,522.56 : 1,307,584.56 = 517,809.28 : x
2. Step 2: Convert to fraction form
   947,522.56/1,307,584.56 = 517,809.28/x
3. Step 3: Cross multiply
   947,522.56x = 1,307,584.56 × 517,809.28
4. Step 4: Simplify right side
   947,522.56x = 677,079,419,552.72
5. Step 5: Solve for x
   x = 677,079,419,552.72/947,522.56
6. Step 6: Final answer
   x = 714,578.68