Finding the Fourth Proportional to 1,009,042.89, 1,392,490.06 and 550,153.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,009,042.89 : 1,392,490.06 = 550,153.72 : x
2. Step 2: Convert to fraction form
   1,009,042.89/1,392,490.06 = 550,153.72/x
3. Step 3: Cross multiply
   1,009,042.89x = 1,392,490.06 × 550,153.72
4. Step 4: Simplify right side
   1,009,042.89x = 766,083,586,937.25
5. Step 5: Solve for x
   x = 766,083,586,937.25/1,009,042.89
6. Step 6: Final answer
   x = 759,218.06