Finding the Fourth Proportional to 1,796.32, 2,694.18 and 685.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,796.32 : 2,694.18 = 685.72 : x
2. Step 2: Convert to fraction form
   1,796.32/2,694.18 = 685.72/x
3. Step 3: Cross multiply
   1,796.32x = 2,694.18 × 685.72
4. Step 4: Simplify right side
   1,796.32x = 1,847,453.11
5. Step 5: Solve for x
   x = 1,847,453.11/1,796.32
6. Step 6: Final answer
   x = 1,028.47