Finding the Fourth Proportional to 1,088.16, 1,501.52 and 694.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,088.16 : 1,501.52 = 694.91 : x
2. Step 2: Convert to fraction form
   1,088.16/1,501.52 = 694.91/x
3. Step 3: Cross multiply
   1,088.16x = 1,501.52 × 694.91
4. Step 4: Simplify right side
   1,088.16x = 1,043,410.28
5. Step 5: Solve for x
   x = 1,043,410.28/1,088.16
6. Step 6: Final answer
   x = 958.88