Finding the Fourth Proportional to 1,159,150.73, 1,737,498.94 and 389,916.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,159,150.73 : 1,737,498.94 = 389,916.18 : x
2. Step 2: Convert to fraction form
   1,159,150.73/1,737,498.94 = 389,916.18/x
3. Step 3: Cross multiply
   1,159,150.73x = 1,737,498.94 × 389,916.18
4. Step 4: Simplify right side
   1,159,150.73x = 677,478,948,464.06
5. Step 5: Solve for x
   x = 677,478,948,464.06/1,159,150.73
6. Step 6: Final answer
   x = 584,461.48