Finding the Fourth Proportional to 3,380.27, 5,074.05 and 2,838.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,380.27 : 5,074.05 = 2,838.38 : x
2. Step 2: Convert to fraction form
   3,380.27/5,074.05 = 2,838.38/x
3. Step 3: Cross multiply
   3,380.27x = 5,074.05 × 2,838.38
4. Step 4: Simplify right side
   3,380.27x = 14,402,082.04
5. Step 5: Solve for x
   x = 14,402,082.04/3,380.27
6. Step 6: Final answer
   x = 4,260.63