Finding the Fourth Proportional to 1,087.31, 1,500.53 and 695.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,087.31 : 1,500.53 = 695.07 : x
2. Step 2: Convert to fraction form
   1,087.31/1,500.53 = 695.07/x
3. Step 3: Cross multiply
   1,087.31x = 1,500.53 × 695.07
4. Step 4: Simplify right side
   1,087.31x = 1,042,969.91
5. Step 5: Solve for x
   x = 1,042,969.91/1,087.31
6. Step 6: Final answer
   x = 959.22