Finding the Fourth Proportional to 2,222.72, 3,331.68 and 1,790.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,222.72 : 3,331.68 = 1,790.24 : x
2. Step 2: Convert to fraction form
   2,222.72/3,331.68 = 1,790.24/x
3. Step 3: Cross multiply
   2,222.72x = 3,331.68 × 1,790.24
4. Step 4: Simplify right side
   2,222.72x = 5,964,506.80
5. Step 5: Solve for x
   x = 5,964,506.80/2,222.72
6. Step 6: Final answer
   x = 2,683.43