Finding the Fourth Proportional to 2,581.30, 3,561.03 and 1,586.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,581.30 : 3,561.03 = 1,586.22 : x
2. Step 2: Convert to fraction form
   2,581.30/3,561.03 = 1,586.22/x
3. Step 3: Cross multiply
   2,581.30x = 3,561.03 × 1,586.22
4. Step 4: Simplify right side
   2,581.30x = 5,648,563.65
5. Step 5: Solve for x
   x = 5,648,563.65/2,581.30
6. Step 6: Final answer
   x = 2,188.26