Finding the Fourth Proportional to 2,523.78, 3,785.87 and 880.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,523.78 : 3,785.87 = 880.29 : x
2. Step 2: Convert to fraction form
   2,523.78/3,785.87 = 880.29/x
3. Step 3: Cross multiply
   2,523.78x = 3,785.87 × 880.29
4. Step 4: Simplify right side
   2,523.78x = 3,332,659.10
5. Step 5: Solve for x
   x = 3,332,659.10/2,523.78
6. Step 6: Final answer
   x = 1,320.50