Finding the Fourth Proportional to 2,630.27, 3,945.45 and 682.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,630.27 : 3,945.45 = 682.42 : x
2. Step 2: Convert to fraction form
   2,630.27/3,945.45 = 682.42/x
3. Step 3: Cross multiply
   2,630.27x = 3,945.45 × 682.42
4. Step 4: Simplify right side
   2,630.27x = 2,692,453.99
5. Step 5: Solve for x
   x = 2,692,453.99/2,630.27
6. Step 6: Final answer
   x = 1,023.64