Finding the Fourth Proportional to 3,955.29, 5,458.56 and 2,628.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,955.29 : 5,458.56 = 2,628.10 : x
2. Step 2: Convert to fraction form
   3,955.29/5,458.56 = 2,628.10/x
3. Step 3: Cross multiply
   3,955.29x = 5,458.56 × 2,628.10
4. Step 4: Simplify right side
   3,955.29x = 14,345,641.54
5. Step 5: Solve for x
   x = 14,345,641.54/3,955.29
6. Step 6: Final answer
   x = 3,626.95