Finding the Fourth Proportional to 2,635.72, 3,952.24 and 880.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,635.72 : 3,952.24 = 880.10 : x
2. Step 2: Convert to fraction form
   2,635.72/3,952.24 = 880.10/x
3. Step 3: Cross multiply
   2,635.72x = 3,952.24 × 880.10
4. Step 4: Simplify right side
   2,635.72x = 3,478,366.42
5. Step 5: Solve for x
   x = 3,478,366.42/2,635.72
6. Step 6: Final answer
   x = 1,319.70