Finding the Fourth Proportional to 2,180.32, 3,269.57 and 880.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,180.32 : 3,269.57 = 880.88 : x
2. Step 2: Convert to fraction form
   2,180.32/3,269.57 = 880.88/x
3. Step 3: Cross multiply
   2,180.32x = 3,269.57 × 880.88
4. Step 4: Simplify right side
   2,180.32x = 2,880,078.07
5. Step 5: Solve for x
   x = 2,880,078.07/2,180.32
6. Step 6: Final answer
   x = 1,320.94