Finding the Fourth Proportional to 2,179.50, 3,268.17 and 880.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,179.50 : 3,268.17 = 880.62 : x
2. Step 2: Convert to fraction form
   2,179.50/3,268.17 = 880.62/x
3. Step 3: Cross multiply
   2,179.50x = 3,268.17 × 880.62
4. Step 4: Simplify right side
   2,179.50x = 2,878,015.87
5. Step 5: Solve for x
   x = 2,878,015.87/2,179.50
6. Step 6: Final answer
   x = 1,320.49