Finding the Fourth Proportional to 2,406.31, 3,319.91 and 1,568.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,406.31 : 3,319.91 = 1,568.11 : x
2. Step 2: Convert to fraction form
   2,406.31/3,319.91 = 1,568.11/x
3. Step 3: Cross multiply
   2,406.31x = 3,319.91 × 1,568.11
4. Step 4: Simplify right side
   2,406.31x = 5,205,984.45
5. Step 5: Solve for x
   x = 5,205,984.45/2,406.31
6. Step 6: Final answer
   x = 2,163.47