Finding the Fourth Proportional to 2,057.47, 2,834.35 and 1,426.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,057.47 : 2,834.35 = 1,426.88 : x
2. Step 2: Convert to fraction form
   2,057.47/2,834.35 = 1,426.88/x
3. Step 3: Cross multiply
   2,057.47x = 2,834.35 × 1,426.88
4. Step 4: Simplify right side
   2,057.47x = 4,044,277.33
5. Step 5: Solve for x
   x = 4,044,277.33/2,057.47
6. Step 6: Final answer
   x = 1,965.66