Finding the Fourth Proportional to 2,328.83, 3,493.59 and 685.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,328.83 : 3,493.59 = 685.18 : x
2. Step 2: Convert to fraction form
   2,328.83/3,493.59 = 685.18/x
3. Step 3: Cross multiply
   2,328.83x = 3,493.59 × 685.18
4. Step 4: Simplify right side
   2,328.83x = 2,393,738.00
5. Step 5: Solve for x
   x = 2,393,738.00/2,328.83
6. Step 6: Final answer
   x = 1,027.87