Finding the Fourth Proportional to 2,548, 3,822.09 and 1,086.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,548 : 3,822.09 = 1,086.15 : x
2. Step 2: Convert to fraction form
   2,548/3,822.09 = 1,086.15/x
3. Step 3: Cross multiply
   2,548x = 3,822.09 × 1,086.15
4. Step 4: Simplify right side
   2,548x = 4,151,363.05
5. Step 5: Solve for x
   x = 4,151,363.05/2,548
6. Step 6: Final answer
   x = 1,629.26