Finding the Fourth Proportional to 1,470.24, 2,028.99 and 807.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,470.24 : 2,028.99 = 807.15 : x
2. Step 2: Convert to fraction form
   1,470.24/2,028.99 = 807.15/x
3. Step 3: Cross multiply
   1,470.24x = 2,028.99 × 807.15
4. Step 4: Simplify right side
   1,470.24x = 1,637,699.28
5. Step 5: Solve for x
   x = 1,637,699.28/1,470.24
6. Step 6: Final answer
   x = 1,113.90