Finding the Fourth Proportional to 2,223.33, 3,067.76 and 1,228.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,223.33 : 3,067.76 = 1,228.59 : x
2. Step 2: Convert to fraction form
   2,223.33/3,067.76 = 1,228.59/x
3. Step 3: Cross multiply
   2,223.33x = 3,067.76 × 1,228.59
4. Step 4: Simplify right side
   2,223.33x = 3,769,013.12
5. Step 5: Solve for x
   x = 3,769,013.12/2,223.33
6. Step 6: Final answer
   x = 1,695.21