Finding the Fourth Proportional to 2,801.59, 3,863.67 and 2,331.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,801.59 : 3,863.67 = 2,331.05 : x
2. Step 2: Convert to fraction form
   2,801.59/3,863.67 = 2,331.05/x
3. Step 3: Cross multiply
   2,801.59x = 3,863.67 × 2,331.05
4. Step 4: Simplify right side
   2,801.59x = 9,006,399.56
5. Step 5: Solve for x
   x = 9,006,399.56/2,801.59
6. Step 6: Final answer
   x = 3,214.74