Finding the Fourth Proportional to 743,632.80, 1,026,210.72 and 404,100.96

Step by Step Solution

1. Step 1: Write the proportion equation
   743,632.80 : 1,026,210.72 = 404,100.96 : x
2. Step 2: Convert to fraction form
   743,632.80/1,026,210.72 = 404,100.96/x
3. Step 3: Cross multiply
   743,632.80x = 1,026,210.72 × 404,100.96
4. Step 4: Simplify right side
   743,632.80x = 414,692,737,114.29
5. Step 5: Solve for x
   x = 414,692,737,114.29/743,632.80
6. Step 6: Final answer
   x = 557,657.94