Finding the Fourth Proportional to 3,955.50, 5,458.04 and 2,276.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,955.50 : 5,458.04 = 2,276.27 : x
2. Step 2: Convert to fraction form
   3,955.50/5,458.04 = 2,276.27/x
3. Step 3: Cross multiply
   3,955.50x = 5,458.04 × 2,276.27
4. Step 4: Simplify right side
   3,955.50x = 12,423,972.71
5. Step 5: Solve for x
   x = 12,423,972.71/3,955.50
6. Step 6: Final answer
   x = 3,140.94