Finding the Fourth Proportional to 3,826.71, 5,280.71 and 2,148.26

Step by Step Solution

1. Step 1: Write the proportion equation
   3,826.71 : 5,280.71 = 2,148.26 : x
2. Step 2: Convert to fraction form
   3,826.71/5,280.71 = 2,148.26/x
3. Step 3: Cross multiply
   3,826.71x = 5,280.71 × 2,148.26
4. Step 4: Simplify right side
   3,826.71x = 11,344,300.92
5. Step 5: Solve for x
   x = 11,344,300.92/3,826.71
6. Step 6: Final answer
   x = 2,964.50