Finding the Fourth Proportional to 2,616.24, 3,610.68 and 1,568.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,616.24 : 3,610.68 = 1,568.40 : x
2. Step 2: Convert to fraction form
   2,616.24/3,610.68 = 1,568.40/x
3. Step 3: Cross multiply
   2,616.24x = 3,610.68 × 1,568.40
4. Step 4: Simplify right side
   2,616.24x = 5,662,990.51
5. Step 5: Solve for x
   x = 5,662,990.51/2,616.24
6. Step 6: Final answer
   x = 2,164.55