Finding the Fourth Proportional to 2,182.58, 3,273.89 and 539.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,182.58 : 3,273.89 = 539.12 : x
2. Step 2: Convert to fraction form
   2,182.58/3,273.89 = 539.12/x
3. Step 3: Cross multiply
   2,182.58x = 3,273.89 × 539.12
4. Step 4: Simplify right side
   2,182.58x = 1,765,019.58
5. Step 5: Solve for x
   x = 1,765,019.58/2,182.58
6. Step 6: Final answer
   x = 808.68