Finding the Fourth Proportional to 2,108.30, 3,162.52 and 548.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,108.30 : 3,162.52 = 548.27 : x
2. Step 2: Convert to fraction form
   2,108.30/3,162.52 = 548.27/x
3. Step 3: Cross multiply
   2,108.30x = 3,162.52 × 548.27
4. Step 4: Simplify right side
   2,108.30x = 1,733,921.38
5. Step 5: Solve for x
   x = 1,733,921.38/2,108.30
6. Step 6: Final answer
   x = 822.43