Finding the Fourth Proportional to 2,547.36, 3,821.52 and 1,086.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,547.36 : 3,821.52 = 1,086.48 : x
2. Step 2: Convert to fraction form
   2,547.36/3,821.52 = 1,086.48/x
3. Step 3: Cross multiply
   2,547.36x = 3,821.52 × 1,086.48
4. Step 4: Simplify right side
   2,547.36x = 4,152,005.05
5. Step 5: Solve for x
   x = 4,152,005.05/2,547.36
6. Step 6: Final answer
   x = 1,629.92