Finding the Fourth Proportional to 2,222.32, 3,067.08 and 1,291.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,222.32 : 3,067.08 = 1,291.12 : x
2. Step 2: Convert to fraction form
   2,222.32/3,067.08 = 1,291.12/x
3. Step 3: Cross multiply
   2,222.32x = 3,067.08 × 1,291.12
4. Step 4: Simplify right side
   2,222.32x = 3,959,968.33
5. Step 5: Solve for x
   x = 3,959,968.33/2,222.32
6. Step 6: Final answer
   x = 1,781.91