Finding the Fourth Proportional to 1,644.72, 2,466.52 and 548.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,644.72 : 2,466.52 = 548.76 : x
2. Step 2: Convert to fraction form
   1,644.72/2,466.52 = 548.76/x
3. Step 3: Cross multiply
   1,644.72x = 2,466.52 × 548.76
4. Step 4: Simplify right side
   1,644.72x = 1,353,527.52
5. Step 5: Solve for x
   x = 1,353,527.52/1,644.72
6. Step 6: Final answer
   x = 822.95