Finding the Fourth Proportional to 2,227.16, 3,073.53 and 1,442.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,227.16 : 3,073.53 = 1,442.57 : x
2. Step 2: Convert to fraction form
   2,227.16/3,073.53 = 1,442.57/x
3. Step 3: Cross multiply
   2,227.16x = 3,073.53 × 1,442.57
4. Step 4: Simplify right side
   2,227.16x = 4,433,778.57
5. Step 5: Solve for x
   x = 4,433,778.57/2,227.16
6. Step 6: Final answer
   x = 1,990.78