Finding the Fourth Proportional to 3,729.87, 5,147.63 and 2,238.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,729.87 : 5,147.63 = 2,238.15 : x
2. Step 2: Convert to fraction form
   3,729.87/5,147.63 = 2,238.15/x
3. Step 3: Cross multiply
   3,729.87x = 5,147.63 × 2,238.15
4. Step 4: Simplify right side
   3,729.87x = 11,521,156.89
5. Step 5: Solve for x
   x = 11,521,156.89/3,729.87
6. Step 6: Final answer
   x = 3,088.89