Finding the Fourth Proportional to 1,087.56, 1,630.01 and 625.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,087.56 : 1,630.01 = 625.55 : x
2. Step 2: Convert to fraction form
   1,087.56/1,630.01 = 625.55/x
3. Step 3: Cross multiply
   1,087.56x = 1,630.01 × 625.55
4. Step 4: Simplify right side
   1,087.56x = 1,019,646.17
5. Step 5: Solve for x
   x = 1,019,646.17/1,087.56
6. Step 6: Final answer
   x = 937.55