Finding the Fourth Proportional to 2,433.78, 3,358.73 and 1,489.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,433.78 : 3,358.73 = 1,489.39 : x
2. Step 2: Convert to fraction form
   2,433.78/3,358.73 = 1,489.39/x
3. Step 3: Cross multiply
   2,433.78x = 3,358.73 × 1,489.39
4. Step 4: Simplify right side
   2,433.78x = 5,002,454.20
5. Step 5: Solve for x
   x = 5,002,454.20/2,433.78
6. Step 6: Final answer
   x = 2,055.43