Finding the Fourth Proportional to 2,222.62, 3,063.78 and 1,662.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,222.62 : 3,063.78 = 1,662.23 : x
2. Step 2: Convert to fraction form
   2,222.62/3,063.78 = 1,662.23/x
3. Step 3: Cross multiply
   2,222.62x = 3,063.78 × 1,662.23
4. Step 4: Simplify right side
   2,222.62x = 5,092,714.69
5. Step 5: Solve for x
   x = 5,092,714.69/2,222.62
6. Step 6: Final answer
   x = 2,291.31