Finding the Fourth Proportional to 2,229.15, 3,074.58 and 1,442.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,229.15 : 3,074.58 = 1,442.37 : x
2. Step 2: Convert to fraction form
   2,229.15/3,074.58 = 1,442.37/x
3. Step 3: Cross multiply
   2,229.15x = 3,074.58 × 1,442.37
4. Step 4: Simplify right side
   2,229.15x = 4,434,681.95
5. Step 5: Solve for x
   x = 4,434,681.95/2,229.15
6. Step 6: Final answer
   x = 1,989.40