Finding the Fourth Proportional to 1,727.04, 2,589.91 and 686.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,727.04 : 2,589.91 = 686.73 : x
2. Step 2: Convert to fraction form
   1,727.04/2,589.91 = 686.73/x
3. Step 3: Cross multiply
   1,727.04x = 2,589.91 × 686.73
4. Step 4: Simplify right side
   1,727.04x = 1,778,568.89
5. Step 5: Solve for x
   x = 1,778,568.89/1,727.04
6. Step 6: Final answer
   x = 1,029.84