Finding the Fourth Proportional to 441.89, 662.56 and 168.00

Step by Step Solution

1. Step 1: Write the proportion equation
   441.89 : 662.56 = 168.00 : x
2. Step 2: Convert to fraction form
   441.89/662.56 = 168.00/x
3. Step 3: Cross multiply
   441.89x = 662.56 × 168.00
4. Step 4: Simplify right side
   441.89x = 111,306.77
5. Step 5: Solve for x
   x = 111,306.77/441.89
6. Step 6: Final answer
   x = 251.89