Finding the Fourth Proportional to 2,222.84, 3,067.80 and 1,291.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,222.84 : 3,067.80 = 1,291.32 : x
2. Step 2: Convert to fraction form
   2,222.84/3,067.80 = 1,291.32/x
3. Step 3: Cross multiply
   2,222.84x = 3,067.80 × 1,291.32
4. Step 4: Simplify right side
   2,222.84x = 3,961,511.50
5. Step 5: Solve for x
   x = 3,961,511.50/2,222.84
6. Step 6: Final answer
   x = 1,782.18