Finding the Fourth Proportional to 2,222.77, 3,067.46 and 1,291.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,222.77 : 3,067.46 = 1,291.27 : x
2. Step 2: Convert to fraction form
   2,222.77/3,067.46 = 1,291.27/x
3. Step 3: Cross multiply
   2,222.77x = 3,067.46 × 1,291.27
4. Step 4: Simplify right side
   2,222.77x = 3,960,912.62
5. Step 5: Solve for x
   x = 3,960,912.62/2,222.77
6. Step 6: Final answer
   x = 1,781.97