Finding the Fourth Proportional to 1,470.49, 2,028.89 and 880.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,470.49 : 2,028.89 = 880.60 : x
2. Step 2: Convert to fraction form
   1,470.49/2,028.89 = 880.60/x
3. Step 3: Cross multiply
   1,470.49x = 2,028.89 × 880.60
4. Step 4: Simplify right side
   1,470.49x = 1,786,640.53
5. Step 5: Solve for x
   x = 1,786,640.53/1,470.49
6. Step 6: Final answer
   x = 1,215.00