Finding the Fourth Proportional to 2,243.73, 3,365.72 and 683.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,243.73 : 3,365.72 = 683.78 : x
2. Step 2: Convert to fraction form
   2,243.73/3,365.72 = 683.78/x
3. Step 3: Cross multiply
   2,243.73x = 3,365.72 × 683.78
4. Step 4: Simplify right side
   2,243.73x = 2,301,391.77
5. Step 5: Solve for x
   x = 2,301,391.77/2,243.73
6. Step 6: Final answer
   x = 1,025.70