Finding the Fourth Proportional to 2,631.15, 3,946.86 and 683.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,631.15 : 3,946.86 = 683.37 : x
2. Step 2: Convert to fraction form
   2,631.15/3,946.86 = 683.37/x
3. Step 3: Cross multiply
   2,631.15x = 3,946.86 × 683.37
4. Step 4: Simplify right side
   2,631.15x = 2,697,165.72
5. Step 5: Solve for x
   x = 2,697,165.72/2,631.15
6. Step 6: Final answer
   x = 1,025.09