Finding the Fourth Proportional to 3,789.33, 5,229.06 and 2,087.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,789.33 : 5,229.06 = 2,087.78 : x
2. Step 2: Convert to fraction form
   3,789.33/5,229.06 = 2,087.78/x
3. Step 3: Cross multiply
   3,789.33x = 5,229.06 × 2,087.78
4. Step 4: Simplify right side
   3,789.33x = 10,917,108.57
5. Step 5: Solve for x
   x = 10,917,108.57/3,789.33
6. Step 6: Final answer
   x = 2,881.02