Finding the Fourth Proportional to 711.89, 1,067.89 and 224.98

Step by Step Solution

1. Step 1: Write the proportion equation
   711.89 : 1,067.89 = 224.98 : x
2. Step 2: Convert to fraction form
   711.89/1,067.89 = 224.98/x
3. Step 3: Cross multiply
   711.89x = 1,067.89 × 224.98
4. Step 4: Simplify right side
   711.89x = 240,253.89
5. Step 5: Solve for x
   x = 240,253.89/711.89
6. Step 6: Final answer
   x = 337.49