Finding the Fourth Proportional to 3,726.72, 5,142.89 and 2,048.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,726.72 : 5,142.89 = 2,048.18 : x
2. Step 2: Convert to fraction form
   3,726.72/5,142.89 = 2,048.18/x
3. Step 3: Cross multiply
   3,726.72x = 5,142.89 × 2,048.18
4. Step 4: Simplify right side
   3,726.72x = 10,533,528.48
5. Step 5: Solve for x
   x = 10,533,528.48/3,726.72
6. Step 6: Final answer
   x = 2,826.49