Finding the Fourth Proportional to 2,222.52, 3,067.11 and 1,291.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,222.52 : 3,067.11 = 1,291.02 : x
2. Step 2: Convert to fraction form
   2,222.52/3,067.11 = 1,291.02/x
3. Step 3: Cross multiply
   2,222.52x = 3,067.11 × 1,291.02
4. Step 4: Simplify right side
   2,222.52x = 3,959,700.35
5. Step 5: Solve for x
   x = 3,959,700.35/2,222.52
6. Step 6: Final answer
   x = 1,781.63