Finding the Fourth Proportional to 1,171,186.88, 1,616,238.72 and 634,642.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,171,186.88 : 1,616,238.72 = 634,642.88 : x
2. Step 2: Convert to fraction form
   1,171,186.88/1,616,238.72 = 634,642.88/x
3. Step 3: Cross multiply
   1,171,186.88x = 1,616,238.72 × 634,642.88
4. Step 4: Simplify right side
   1,171,186.88x = 1,025,734,396,028.31
5. Step 5: Solve for x
   x = 1,025,734,396,028.31/1,171,186.88
6. Step 6: Final answer
   x = 875,807.62