Finding the Fourth Proportional to 2,069.48, 3,104.31 and 682.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,069.48 : 3,104.31 = 682.81 : x
2. Step 2: Convert to fraction form
   2,069.48/3,104.31 = 682.81/x
3. Step 3: Cross multiply
   2,069.48x = 3,104.31 × 682.81
4. Step 4: Simplify right side
   2,069.48x = 2,119,648.71
5. Step 5: Solve for x
   x = 2,119,648.71/2,069.48
6. Step 6: Final answer
   x = 1,024.24