Finding the Fourth Proportional to 1,087.79, 1,632.31 and 650.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,087.79 : 1,632.31 = 650.10 : x
2. Step 2: Convert to fraction form
   1,087.79/1,632.31 = 650.10/x
3. Step 3: Cross multiply
   1,087.79x = 1,632.31 × 650.10
4. Step 4: Simplify right side
   1,087.79x = 1,061,171.06
5. Step 5: Solve for x
   x = 1,061,171.06/1,087.79
6. Step 6: Final answer
   x = 975.53