Finding the Fourth Proportional to 915,697.57, 1,263,742.56 and 533,716.15

Step by Step Solution

1. Step 1: Write the proportion equation
   915,697.57 : 1,263,742.56 = 533,716.15 : x
2. Step 2: Convert to fraction form
   915,697.57/1,263,742.56 = 533,716.15/x
3. Step 3: Cross multiply
   915,697.57x = 1,263,742.56 × 533,716.15
4. Step 4: Simplify right side
   915,697.57x = 674,479,813,714.34
5. Step 5: Solve for x
   x = 674,479,813,714.34/915,697.57
6. Step 6: Final answer
   x = 736,574.86