Finding the Fourth Proportional to 988,451.60, 1,364,062.56 and 535,742.72

Step by Step Solution

1. Step 1: Write the proportion equation
   988,451.60 : 1,364,062.56 = 535,742.72 : x
2. Step 2: Convert to fraction form
   988,451.60/1,364,062.56 = 535,742.72/x
3. Step 3: Cross multiply
   988,451.60x = 1,364,062.56 × 535,742.72
4. Step 4: Simplify right side
   988,451.60x = 730,786,586,144.56
5. Step 5: Solve for x
   x = 730,786,586,144.56/988,451.60
6. Step 6: Final answer
   x = 739,324.60