Finding the Fourth Proportional to 2,433.85, 3,357.94 and 1,439.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,433.85 : 3,357.94 = 1,439.47 : x
2. Step 2: Convert to fraction form
   2,433.85/3,357.94 = 1,439.47/x
3. Step 3: Cross multiply
   2,433.85x = 3,357.94 × 1,439.47
4. Step 4: Simplify right side
   2,433.85x = 4,833,653.89
5. Step 5: Solve for x
   x = 4,833,653.89/2,433.85
6. Step 6: Final answer
   x = 1,986.01