Finding the Fourth Proportional to 1,541.40, 2,311.56 and 1,443

Step by Step Solution

1. Step 1: Write the proportion equation
   1,541.40 : 2,311.56 = 1,443 : x
2. Step 2: Convert to fraction form
   1,541.40/2,311.56 = 1,443/x
3. Step 3: Cross multiply
   1,541.40x = 2,311.56 × 1,443
4. Step 4: Simplify right side
   1,541.40x = 3,335,581.08
5. Step 5: Solve for x
   x = 3,335,581.08/1,541.40
6. Step 6: Final answer
   x = 2,163.99