Finding the Fourth Proportional to 2,069.78, 3,104.22 and 682.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,069.78 : 3,104.22 = 682.78 : x
2. Step 2: Convert to fraction form
   2,069.78/3,104.22 = 682.78/x
3. Step 3: Cross multiply
   2,069.78x = 3,104.22 × 682.78
4. Step 4: Simplify right side
   2,069.78x = 2,119,499.33
5. Step 5: Solve for x
   x = 2,119,499.33/2,069.78
6. Step 6: Final answer
   x = 1,024.02