Finding the Fourth Proportional to 1,597.34, 2,395.83 and 443

Step by Step Solution

1. Step 1: Write the proportion equation
   1,597.34 : 2,395.83 = 443 : x
2. Step 2: Convert to fraction form
   1,597.34/2,395.83 = 443/x
3. Step 3: Cross multiply
   1,597.34x = 2,395.83 × 443
4. Step 4: Simplify right side
   1,597.34x = 1,061,352.69
5. Step 5: Solve for x
   x = 1,061,352.69/1,597.34
6. Step 6: Final answer
   x = 664.45