Finding the Fourth Proportional to 2,576, 3,555.24 and 1,581.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,576 : 3,555.24 = 1,581.36 : x
2. Step 2: Convert to fraction form
   2,576/3,555.24 = 1,581.36/x
3. Step 3: Cross multiply
   2,576x = 3,555.24 × 1,581.36
4. Step 4: Simplify right side
   2,576x = 5,622,114.33
5. Step 5: Solve for x
   x = 5,622,114.33/2,576
6. Step 6: Final answer
   x = 2,182.50