Finding the Fourth Proportional to 4,039.72, 5,574.50 and 2,270.98

Step by Step Solution

1. Step 1: Write the proportion equation
   4,039.72 : 5,574.50 = 2,270.98 : x
2. Step 2: Convert to fraction form
   4,039.72/5,574.50 = 2,270.98/x
3. Step 3: Cross multiply
   4,039.72x = 5,574.50 × 2,270.98
4. Step 4: Simplify right side
   4,039.72x = 12,659,578.01
5. Step 5: Solve for x
   x = 12,659,578.01/4,039.72
6. Step 6: Final answer
   x = 3,133.78