Finding the Fourth Proportional to 3,723.53, 5,138.78 and 2,045.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,723.53 : 5,138.78 = 2,045.27 : x
2. Step 2: Convert to fraction form
   3,723.53/5,138.78 = 2,045.27/x
3. Step 3: Cross multiply
   3,723.53x = 5,138.78 × 2,045.27
4. Step 4: Simplify right side
   3,723.53x = 10,510,192.57
5. Step 5: Solve for x
   x = 10,510,192.57/3,723.53
6. Step 6: Final answer
   x = 2,822.64