Finding the Fourth Proportional to 915,458.74, 1,373,978.67 and 635,172.82

Step by Step Solution

1. Step 1: Write the proportion equation
   915,458.74 : 1,373,978.67 = 635,172.82 : x
2. Step 2: Convert to fraction form
   915,458.74/1,373,978.67 = 635,172.82/x
3. Step 3: Cross multiply
   915,458.74x = 1,373,978.67 × 635,172.82
4. Step 4: Simplify right side
   915,458.74x = 872,713,906,443.75
5. Step 5: Solve for x
   x = 872,713,906,443.75/915,458.74
6. Step 6: Final answer
   x = 953,307.74