Finding the Fourth Proportional to 2,222.85, 3,067.71 and 1,278.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,222.85 : 3,067.71 = 1,278.94 : x
2. Step 2: Convert to fraction form
   2,222.85/3,067.71 = 1,278.94/x
3. Step 3: Cross multiply
   2,222.85x = 3,067.71 × 1,278.94
4. Step 4: Simplify right side
   2,222.85x = 3,923,417.03
5. Step 5: Solve for x
   x = 3,923,417.03/2,222.85
6. Step 6: Final answer
   x = 1,765.04