Finding the Fourth Proportional to 3,728.03, 5,145.59 and 2,236.91

Step by Step Solution

1. Step 1: Write the proportion equation
   3,728.03 : 5,145.59 = 2,236.91 : x
2. Step 2: Convert to fraction form
   3,728.03/5,145.59 = 2,236.91/x
3. Step 3: Cross multiply
   3,728.03x = 5,145.59 × 2,236.91
4. Step 4: Simplify right side
   3,728.03x = 11,510,221.73
5. Step 5: Solve for x
   x = 11,510,221.73/3,728.03
6. Step 6: Final answer
   x = 3,087.48