Finding the Fourth Proportional to 1,108.32, 1,526.04 and 960.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,108.32 : 1,526.04 = 960.72 : x
2. Step 2: Convert to fraction form
   1,108.32/1,526.04 = 960.72/x
3. Step 3: Cross multiply
   1,108.32x = 1,526.04 × 960.72
4. Step 4: Simplify right side
   1,108.32x = 1,466,097.15
5. Step 5: Solve for x
   x = 1,466,097.15/1,108.32
6. Step 6: Final answer
   x = 1,322.81