Finding the Fourth Proportional to 2,488.50, 3,434.09 and 1,426.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,488.50 : 3,434.09 = 1,426.28 : x
2. Step 2: Convert to fraction form
   2,488.50/3,434.09 = 1,426.28/x
3. Step 3: Cross multiply
   2,488.50x = 3,434.09 × 1,426.28
4. Step 4: Simplify right side
   2,488.50x = 4,897,949.58
5. Step 5: Solve for x
   x = 4,897,949.58/2,488.50
6. Step 6: Final answer
   x = 1,968.23