Finding the Fourth Proportional to 1,088.31, 1,501.12 and 695.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,088.31 : 1,501.12 = 695.15 : x
2. Step 2: Convert to fraction form
   1,088.31/1,501.12 = 695.15/x
3. Step 3: Cross multiply
   1,088.31x = 1,501.12 × 695.15
4. Step 4: Simplify right side
   1,088.31x = 1,043,503.57
5. Step 5: Solve for x
   x = 1,043,503.57/1,088.31
6. Step 6: Final answer
   x = 958.83