Finding the Fourth Proportional to 2,055.89, 3,083.31 and 806.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,055.89 : 3,083.31 = 806.73 : x
2. Step 2: Convert to fraction form
   2,055.89/3,083.31 = 806.73/x
3. Step 3: Cross multiply
   2,055.89x = 3,083.31 × 806.73
4. Step 4: Simplify right side
   2,055.89x = 2,487,400.69
5. Step 5: Solve for x
   x = 2,487,400.69/2,055.89
6. Step 6: Final answer
   x = 1,209.89