Finding the Fourth Proportional to 3,914.17, 5,408.71 and 2,850.08

Step by Step Solution

1. Step 1: Write the proportion equation
   3,914.17 : 5,408.71 = 2,850.08 : x
2. Step 2: Convert to fraction form
   3,914.17/5,408.71 = 2,850.08/x
3. Step 3: Cross multiply
   3,914.17x = 5,408.71 × 2,850.08
4. Step 4: Simplify right side
   3,914.17x = 15,415,262.59
5. Step 5: Solve for x
   x = 15,415,262.59/3,914.17
6. Step 6: Final answer
   x = 3,938.32