Finding the Fourth Proportional to 2,576.41, 3,554.23 and 1,581.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,576.41 : 3,554.23 = 1,581.07 : x
2. Step 2: Convert to fraction form
   2,576.41/3,554.23 = 1,581.07/x
3. Step 3: Cross multiply
   2,576.41x = 3,554.23 × 1,581.07
4. Step 4: Simplify right side
   2,576.41x = 5,619,483.22
5. Step 5: Solve for x
   x = 5,619,483.22/2,576.41
6. Step 6: Final answer
   x = 2,181.13