Finding the Fourth Proportional to 3,780.78, 5,667.27 and 2,738.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,780.78 : 5,667.27 = 2,738.16 : x
2. Step 2: Convert to fraction form
   3,780.78/5,667.27 = 2,738.16/x
3. Step 3: Cross multiply
   3,780.78x = 5,667.27 × 2,738.16
4. Step 4: Simplify right side
   3,780.78x = 15,517,892.02
5. Step 5: Solve for x
   x = 15,517,892.02/3,780.78
6. Step 6: Final answer
   x = 4,104.42