Finding the Fourth Proportional to 1,470.05, 2,028.59 and 806.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,470.05 : 2,028.59 = 806.89 : x
2. Step 2: Convert to fraction form
   1,470.05/2,028.59 = 806.89/x
3. Step 3: Cross multiply
   1,470.05x = 2,028.59 × 806.89
4. Step 4: Simplify right side
   1,470.05x = 1,636,838.84
5. Step 5: Solve for x
   x = 1,636,838.84/1,470.05
6. Step 6: Final answer
   x = 1,113.46