Finding the Fourth Proportional to 3,850.29, 5,314.76 and 2,278.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,850.29 : 5,314.76 = 2,278.38 : x
2. Step 2: Convert to fraction form
   3,850.29/5,314.76 = 2,278.38/x
3. Step 3: Cross multiply
   3,850.29x = 5,314.76 × 2,278.38
4. Step 4: Simplify right side
   3,850.29x = 12,109,042.89
5. Step 5: Solve for x
   x = 12,109,042.89/3,850.29
6. Step 6: Final answer
   x = 3,144.97