Finding the Fourth Proportional to 738.43, 1,018.63 and 443.52

Step by Step Solution

1. Step 1: Write the proportion equation
   738.43 : 1,018.63 = 443.52 : x
2. Step 2: Convert to fraction form
   738.43/1,018.63 = 443.52/x
3. Step 3: Cross multiply
   738.43x = 1,018.63 × 443.52
4. Step 4: Simplify right side
   738.43x = 451,782.78
5. Step 5: Solve for x
   x = 451,782.78/738.43
6. Step 6: Final answer
   x = 611.82