Finding the Fourth Proportional to 2,547.29, 3,822.55 and 1,086.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,547.29 : 3,822.55 = 1,086.43 : x
2. Step 2: Convert to fraction form
   2,547.29/3,822.55 = 1,086.43/x
3. Step 3: Cross multiply
   2,547.29x = 3,822.55 × 1,086.43
4. Step 4: Simplify right side
   2,547.29x = 4,152,933.00
5. Step 5: Solve for x
   x = 4,152,933.00/2,547.29
6. Step 6: Final answer
   x = 1,630.33