Finding the Fourth Proportional to 2,222.46, 3,067.37 and 1,690.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,222.46 : 3,067.37 = 1,690.49 : x
2. Step 2: Convert to fraction form
   2,222.46/3,067.37 = 1,690.49/x
3. Step 3: Cross multiply
   2,222.46x = 3,067.37 × 1,690.49
4. Step 4: Simplify right side
   2,222.46x = 5,185,358.31
5. Step 5: Solve for x
   x = 5,185,358.31/2,222.46
6. Step 6: Final answer
   x = 2,333.16