Finding the Fourth Proportional to 1,100.24, 1,517.88 and 634.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.24 : 1,517.88 = 634.16 : x
2. Step 2: Convert to fraction form
   1,100.24/1,517.88 = 634.16/x
3. Step 3: Cross multiply
   1,100.24x = 1,517.88 × 634.16
4. Step 4: Simplify right side
   1,100.24x = 962,578.78
5. Step 5: Solve for x
   x = 962,578.78/1,100.24
6. Step 6: Final answer
   x = 874.88