Finding the Fourth Proportional to 2,616.21, 3,610.17 and 1,568.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,616.21 : 3,610.17 = 1,568.07 : x
2. Step 2: Convert to fraction form
   2,616.21/3,610.17 = 1,568.07/x
3. Step 3: Cross multiply
   2,616.21x = 3,610.17 × 1,568.07
4. Step 4: Simplify right side
   2,616.21x = 5,660,999.27
5. Step 5: Solve for x
   x = 5,660,999.27/2,616.21
6. Step 6: Final answer
   x = 2,163.82