Finding the Fourth Proportional to 1,470.15, 2,028.31 and 910.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,470.15 : 2,028.31 = 910.04 : x
2. Step 2: Convert to fraction form
   1,470.15/2,028.31 = 910.04/x
3. Step 3: Cross multiply
   1,470.15x = 2,028.31 × 910.04
4. Step 4: Simplify right side
   1,470.15x = 1,845,830.82
5. Step 5: Solve for x
   x = 1,845,830.82/1,470.15
6. Step 6: Final answer
   x = 1,255.54