Finding the Fourth Proportional to 738.52, 1,019.59 and 443.88

Step by Step Solution

1. Step 1: Write the proportion equation
   738.52 : 1,019.59 = 443.88 : x
2. Step 2: Convert to fraction form
   738.52/1,019.59 = 443.88/x
3. Step 3: Cross multiply
   738.52x = 1,019.59 × 443.88
4. Step 4: Simplify right side
   738.52x = 452,574.50
5. Step 5: Solve for x
   x = 452,574.50/738.52
6. Step 6: Final answer
   x = 612.81