Finding the Fourth Proportional to 1,087.46, 1,630.38 and 654.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,087.46 : 1,630.38 = 654.52 : x
2. Step 2: Convert to fraction form
   1,087.46/1,630.38 = 654.52/x
3. Step 3: Cross multiply
   1,087.46x = 1,630.38 × 654.52
4. Step 4: Simplify right side
   1,087.46x = 1,067,108.17
5. Step 5: Solve for x
   x = 1,067,108.17/1,087.46
6. Step 6: Final answer
   x = 981.28