Finding the Fourth Proportional to 2,323.86, 3,486.12 and 680.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,323.86 : 3,486.12 = 680.16 : x
2. Step 2: Convert to fraction form
   2,323.86/3,486.12 = 680.16/x
3. Step 3: Cross multiply
   2,323.86x = 3,486.12 × 680.16
4. Step 4: Simplify right side
   2,323.86x = 2,371,119.38
5. Step 5: Solve for x
   x = 2,371,119.38/2,323.86
6. Step 6: Final answer
   x = 1,020.34