Finding the Fourth Proportional to 2,223.29, 3,067.93 and 1,278.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,223.29 : 3,067.93 = 1,278.83 : x
2. Step 2: Convert to fraction form
   2,223.29/3,067.93 = 1,278.83/x
3. Step 3: Cross multiply
   2,223.29x = 3,067.93 × 1,278.83
4. Step 4: Simplify right side
   2,223.29x = 3,923,348.78
5. Step 5: Solve for x
   x = 3,923,348.78/2,223.29
6. Step 6: Final answer
   x = 1,764.66