Finding the Fourth Proportional to 1,100.14, 1,518.15 and 634.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.14 : 1,518.15 = 634.39 : x
2. Step 2: Convert to fraction form
   1,100.14/1,518.15 = 634.39/x
3. Step 3: Cross multiply
   1,100.14x = 1,518.15 × 634.39
4. Step 4: Simplify right side
   1,100.14x = 963,099.18
5. Step 5: Solve for x
   x = 963,099.18/1,100.14
6. Step 6: Final answer
   x = 875.43