Finding the Fourth Proportional to 2,222.32, 3,067.56 and 1,291.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,222.32 : 3,067.56 = 1,291.60 : x
2. Step 2: Convert to fraction form
   2,222.32/3,067.56 = 1,291.60/x
3. Step 3: Cross multiply
   2,222.32x = 3,067.56 × 1,291.60
4. Step 4: Simplify right side
   2,222.32x = 3,962,060.50
5. Step 5: Solve for x
   x = 3,962,060.50/2,222.32
6. Step 6: Final answer
   x = 1,782.85