Finding the Fourth Proportional to 3,914.28, 5,401.61 and 2,235.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,914.28 : 5,401.61 = 2,235.42 : x
2. Step 2: Convert to fraction form
   3,914.28/5,401.61 = 2,235.42/x
3. Step 3: Cross multiply
   3,914.28x = 5,401.61 × 2,235.42
4. Step 4: Simplify right side
   3,914.28x = 12,074,867.03
5. Step 5: Solve for x
   x = 12,074,867.03/3,914.28
6. Step 6: Final answer
   x = 3,084.82