Finding the Fourth Proportional to 782,113.89, 1,079,317.17 and 424,417.89

Step by Step Solution

1. Step 1: Write the proportion equation
   782,113.89 : 1,079,317.17 = 424,417.89 : x
2. Step 2: Convert to fraction form
   782,113.89/1,079,317.17 = 424,417.89/x
3. Step 3: Cross multiply
   782,113.89x = 1,079,317.17 × 424,417.89
4. Step 4: Simplify right side
   782,113.89x = 458,081,515,932.17
5. Step 5: Solve for x
   x = 458,081,515,932.17/782,113.89
6. Step 6: Final answer
   x = 585,696.69