Finding the Fourth Proportional to 2,227.70, 3,074.56 and 1,443.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,227.70 : 3,074.56 = 1,443.12 : x
2. Step 2: Convert to fraction form
   2,227.70/3,074.56 = 1,443.12/x
3. Step 3: Cross multiply
   2,227.70x = 3,074.56 × 1,443.12
4. Step 4: Simplify right side
   2,227.70x = 4,436,943.89
5. Step 5: Solve for x
   x = 4,436,943.89/2,227.70
6. Step 6: Final answer
   x = 1,991.71