Finding the Fourth Proportional to 2,382.48, 3,578.04 and 1,086.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,382.48 : 3,578.04 = 1,086.48 : x
2. Step 2: Convert to fraction form
   2,382.48/3,578.04 = 1,086.48/x
3. Step 3: Cross multiply
   2,382.48x = 3,578.04 × 1,086.48
4. Step 4: Simplify right side
   2,382.48x = 3,887,468.90
5. Step 5: Solve for x
   x = 3,887,468.90/2,382.48
6. Step 6: Final answer
   x = 1,631.69