Finding the Fourth Proportional to 2,585.18, 3,568.12 and 1,591.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,585.18 : 3,568.12 = 1,591.32 : x
2. Step 2: Convert to fraction form
   2,585.18/3,568.12 = 1,591.32/x
3. Step 3: Cross multiply
   2,585.18x = 3,568.12 × 1,591.32
4. Step 4: Simplify right side
   2,585.18x = 5,678,020.72
5. Step 5: Solve for x
   x = 5,678,020.72/2,585.18
6. Step 6: Final answer
   x = 2,196.37