Finding the Fourth Proportional to 3,825.83, 5,280.05 and 2,147.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,825.83 : 5,280.05 = 2,147.69 : x
2. Step 2: Convert to fraction form
   3,825.83/5,280.05 = 2,147.69/x
3. Step 3: Cross multiply
   3,825.83x = 5,280.05 × 2,147.69
4. Step 4: Simplify right side
   3,825.83x = 11,339,910.58
5. Step 5: Solve for x
   x = 11,339,910.58/3,825.83
6. Step 6: Final answer
   x = 2,964.04