Finding the Fourth Proportional to 743,543.76, 1,026,099.72 and 404,017.68

Step by Step Solution

1. Step 1: Write the proportion equation
   743,543.76 : 1,026,099.72 = 404,017.68 : x
2. Step 2: Convert to fraction form
   743,543.76/1,026,099.72 = 404,017.68/x
3. Step 3: Cross multiply
   743,543.76x = 1,026,099.72 × 404,017.68
4. Step 4: Simplify right side
   743,543.76x = 414,562,428,323.05
5. Step 5: Solve for x
   x = 414,562,428,323.05/743,543.76
6. Step 6: Final answer
   x = 557,549.47