Finding the Fourth Proportional to 2,268.72, 3,401.48 and 880.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,268.72 : 3,401.48 = 880.90 : x
2. Step 2: Convert to fraction form
   2,268.72/3,401.48 = 880.90/x
3. Step 3: Cross multiply
   2,268.72x = 3,401.48 × 880.90
4. Step 4: Simplify right side
   2,268.72x = 2,996,363.73
5. Step 5: Solve for x
   x = 2,996,363.73/2,268.72
6. Step 6: Final answer
   x = 1,320.73