Finding the Fourth Proportional to 2,222.73, 3,067.56 and 1,228.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,222.73 : 3,067.56 = 1,228.11 : x
2. Step 2: Convert to fraction form
   2,222.73/3,067.56 = 1,228.11/x
3. Step 3: Cross multiply
   2,222.73x = 3,067.56 × 1,228.11
4. Step 4: Simplify right side
   2,222.73x = 3,767,301.11
5. Step 5: Solve for x
   x = 3,767,301.11/2,222.73
6. Step 6: Final answer
   x = 1,694.90