Finding the Fourth Proportional to 1,087.43, 1,629.86 and 625.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,087.43 : 1,629.86 = 625.53 : x
2. Step 2: Convert to fraction form
   1,087.43/1,629.86 = 625.53/x
3. Step 3: Cross multiply
   1,087.43x = 1,629.86 × 625.53
4. Step 4: Simplify right side
   1,087.43x = 1,019,523.20
5. Step 5: Solve for x
   x = 1,019,523.20/1,087.43
6. Step 6: Final answer
   x = 937.56