Finding the Fourth Proportional to 2,038.29, 2,811.69 and 1,251.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,038.29 : 2,811.69 = 1,251.78 : x
2. Step 2: Convert to fraction form
   2,038.29/2,811.69 = 1,251.78/x
3. Step 3: Cross multiply
   2,038.29x = 2,811.69 × 1,251.78
4. Step 4: Simplify right side
   2,038.29x = 3,519,617.31
5. Step 5: Solve for x
   x = 3,519,617.31/2,038.29
6. Step 6: Final answer
   x = 1,726.75