Finding the Fourth Proportional to 2,222.98, 3,067.88 and 1,228.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,222.98 : 3,067.88 = 1,228.28 : x
2. Step 2: Convert to fraction form
   2,222.98/3,067.88 = 1,228.28/x
3. Step 3: Cross multiply
   2,222.98x = 3,067.88 × 1,228.28
4. Step 4: Simplify right side
   2,222.98x = 3,768,194.17
5. Step 5: Solve for x
   x = 3,768,194.17/2,222.98
6. Step 6: Final answer
   x = 1,695.11