Finding the Fourth Proportional to 1,061.04, 1,591.72 and 443.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.04 : 1,591.72 = 443.96 : x
2. Step 2: Convert to fraction form
   1,061.04/1,591.72 = 443.96/x
3. Step 3: Cross multiply
   1,061.04x = 1,591.72 × 443.96
4. Step 4: Simplify right side
   1,061.04x = 706,660.01
5. Step 5: Solve for x
   x = 706,660.01/1,061.04
6. Step 6: Final answer
   x = 666.01