Finding the Fourth Proportional to 1,469.81, 2,028.15 and 806.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,469.81 : 2,028.15 = 806.49 : x
2. Step 2: Convert to fraction form
   1,469.81/2,028.15 = 806.49/x
3. Step 3: Cross multiply
   1,469.81x = 2,028.15 × 806.49
4. Step 4: Simplify right side
   1,469.81x = 1,635,682.69
5. Step 5: Solve for x
   x = 1,635,682.69/1,469.81
6. Step 6: Final answer
   x = 1,112.85