Finding the Fourth Proportional to 2,679.27, 4,020.27 and 1,218.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,679.27 : 4,020.27 = 1,218.24 : x
2. Step 2: Convert to fraction form
   2,679.27/4,020.27 = 1,218.24/x
3. Step 3: Cross multiply
   2,679.27x = 4,020.27 × 1,218.24
4. Step 4: Simplify right side
   2,679.27x = 4,897,653.72
5. Step 5: Solve for x
   x = 4,897,653.72/2,679.27
6. Step 6: Final answer
   x = 1,827.98