Finding the Fourth Proportional to 2,438.57, 3,365.69 and 1,443.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,438.57 : 3,365.69 = 1,443.89 : x
2. Step 2: Convert to fraction form
   2,438.57/3,365.69 = 1,443.89/x
3. Step 3: Cross multiply
   2,438.57x = 3,365.69 × 1,443.89
4. Step 4: Simplify right side
   2,438.57x = 4,859,687.33
5. Step 5: Solve for x
   x = 4,859,687.33/2,438.57
6. Step 6: Final answer
   x = 1,992.84