Finding the Fourth Proportional to 2,660.33, 3,984.31 and 2,568.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,660.33 : 3,984.31 = 2,568.05 : x
2. Step 2: Convert to fraction form
   2,660.33/3,984.31 = 2,568.05/x
3. Step 3: Cross multiply
   2,660.33x = 3,984.31 × 2,568.05
4. Step 4: Simplify right side
   2,660.33x = 10,231,907.30
5. Step 5: Solve for x
   x = 10,231,907.30/2,660.33
6. Step 6: Final answer
   x = 3,846.10