Finding the Fourth Proportional to 2,616.56, 3,611.16 and 1,568.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,616.56 : 3,611.16 = 1,568.62 : x
2. Step 2: Convert to fraction form
   2,616.56/3,611.16 = 1,568.62/x
3. Step 3: Cross multiply
   2,616.56x = 3,611.16 × 1,568.62
4. Step 4: Simplify right side
   2,616.56x = 5,664,537.80
5. Step 5: Solve for x
   x = 5,664,537.80/2,616.56
6. Step 6: Final answer
   x = 2,164.88