Finding the Fourth Proportional to 3,728.50, 5,144.91 and 2,236.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,728.50 : 5,144.91 = 2,236.48 : x
2. Step 2: Convert to fraction form
   3,728.50/5,144.91 = 2,236.48/x
3. Step 3: Cross multiply
   3,728.50x = 5,144.91 × 2,236.48
4. Step 4: Simplify right side
   3,728.50x = 11,506,462.59
5. Step 5: Solve for x
   x = 11,506,462.59/3,728.50
6. Step 6: Final answer
   x = 3,086.09