Finding the Fourth Proportional to 3,309.75, 4,961.27 and 2,078.03

Step by Step Solution

1. Step 1: Write the proportion equation
   3,309.75 : 4,961.27 = 2,078.03 : x
2. Step 2: Convert to fraction form
   3,309.75/4,961.27 = 2,078.03/x
3. Step 3: Cross multiply
   3,309.75x = 4,961.27 × 2,078.03
4. Step 4: Simplify right side
   3,309.75x = 10,309,685.50
5. Step 5: Solve for x
   x = 10,309,685.50/3,309.75
6. Step 6: Final answer
   x = 3,114.94