Finding the Fourth Proportional to 2,634.33, 3,951.06 and 880.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,634.33 : 3,951.06 = 880.55 : x
2. Step 2: Convert to fraction form
   2,634.33/3,951.06 = 880.55/x
3. Step 3: Cross multiply
   2,634.33x = 3,951.06 × 880.55
4. Step 4: Simplify right side
   2,634.33x = 3,479,105.88
5. Step 5: Solve for x
   x = 3,479,105.88/2,634.33
6. Step 6: Final answer
   x = 1,320.68