Finding the Fourth Proportional to 3,728.45, 5,145.37 and 2,049.93

Step by Step Solution

1. Step 1: Write the proportion equation
   3,728.45 : 5,145.37 = 2,049.93 : x
2. Step 2: Convert to fraction form
   3,728.45/5,145.37 = 2,049.93/x
3. Step 3: Cross multiply
   3,728.45x = 5,145.37 × 2,049.93
4. Step 4: Simplify right side
   3,728.45x = 10,547,648.32
5. Step 5: Solve for x
   x = 10,547,648.32/3,728.45
6. Step 6: Final answer
   x = 2,828.96