Finding the Fourth Proportional to 3,633.72, 5,447.70 and 1,443

Step by Step Solution

1. Step 1: Write the proportion equation
   3,633.72 : 5,447.70 = 1,443 : x
2. Step 2: Convert to fraction form
   3,633.72/5,447.70 = 1,443/x
3. Step 3: Cross multiply
   3,633.72x = 5,447.70 × 1,443
4. Step 4: Simplify right side
   3,633.72x = 7,861,031.10
5. Step 5: Solve for x
   x = 7,861,031.10/3,633.72
6. Step 6: Final answer
   x = 2,163.36