Finding the Fourth Proportional to 2,238.27, 3,356.33 and 677.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.27 : 3,356.33 = 677.67 : x
2. Step 2: Convert to fraction form
   2,238.27/3,356.33 = 677.67/x
3. Step 3: Cross multiply
   2,238.27x = 3,356.33 × 677.67
4. Step 4: Simplify right side
   2,238.27x = 2,274,480.76
5. Step 5: Solve for x
   x = 2,274,480.76/2,238.27
6. Step 6: Final answer
   x = 1,016.18