Finding the Fourth Proportional to 2,222.75, 3,067.67 and 1,291.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,222.75 : 3,067.67 = 1,291.25 : x
2. Step 2: Convert to fraction form
   2,222.75/3,067.67 = 1,291.25/x
3. Step 3: Cross multiply
   2,222.75x = 3,067.67 × 1,291.25
4. Step 4: Simplify right side
   2,222.75x = 3,961,128.89
5. Step 5: Solve for x
   x = 3,961,128.89/2,222.75
6. Step 6: Final answer
   x = 1,782.08