Finding the Fourth Proportional to 1,469.89, 2,028.50 and 806.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,469.89 : 2,028.50 = 806.76 : x
2. Step 2: Convert to fraction form
   1,469.89/2,028.50 = 806.76/x
3. Step 3: Cross multiply
   1,469.89x = 2,028.50 × 806.76
4. Step 4: Simplify right side
   1,469.89x = 1,636,512.66
5. Step 5: Solve for x
   x = 1,636,512.66/1,469.89
6. Step 6: Final answer
   x = 1,113.36