Finding the Fourth Proportional to 443.25, 611.69 and 268.83

Step by Step Solution

1. Step 1: Write the proportion equation
   443.25 : 611.69 = 268.83 : x
2. Step 2: Convert to fraction form
   443.25/611.69 = 268.83/x
3. Step 3: Cross multiply
   443.25x = 611.69 × 268.83
4. Step 4: Simplify right side
   443.25x = 164,439.28
5. Step 5: Solve for x
   x = 164,439.28/443.25
6. Step 6: Final answer
   x = 370.99