Finding the Fourth Proportional to 2,434.42, 3,359.55 and 1,439.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,434.42 : 3,359.55 = 1,439.95 : x
2. Step 2: Convert to fraction form
   2,434.42/3,359.55 = 1,439.95/x
3. Step 3: Cross multiply
   2,434.42x = 3,359.55 × 1,439.95
4. Step 4: Simplify right side
   2,434.42x = 4,837,584.02
5. Step 5: Solve for x
   x = 4,837,584.02/2,434.42
6. Step 6: Final answer
   x = 1,987.16