Finding the Fourth Proportional to 1,581.57, 2,184.17 and 1,568.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,581.57 : 2,184.17 = 1,568.61 : x
2. Step 2: Convert to fraction form
   1,581.57/2,184.17 = 1,568.61/x
3. Step 3: Cross multiply
   1,581.57x = 2,184.17 × 1,568.61
4. Step 4: Simplify right side
   1,581.57x = 3,426,103.06
5. Step 5: Solve for x
   x = 3,426,103.06/1,581.57
6. Step 6: Final answer
   x = 2,166.27