Finding the Fourth Proportional to 2,009.61, 3,014.42 and 548.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,009.61 : 3,014.42 = 548.72 : x
2. Step 2: Convert to fraction form
   2,009.61/3,014.42 = 548.72/x
3. Step 3: Cross multiply
   2,009.61x = 3,014.42 × 548.72
4. Step 4: Simplify right side
   2,009.61x = 1,654,082.99
5. Step 5: Solve for x
   x = 1,654,082.99/2,009.61
6. Step 6: Final answer
   x = 823.09