Finding the Fourth Proportional to 3,820.46, 5,729.91 and 2,238.23

Step by Step Solution

1. Step 1: Write the proportion equation
   3,820.46 : 5,729.91 = 2,238.23 : x
2. Step 2: Convert to fraction form
   3,820.46/5,729.91 = 2,238.23/x
3. Step 3: Cross multiply
   3,820.46x = 5,729.91 × 2,238.23
4. Step 4: Simplify right side
   3,820.46x = 12,824,856.46
5. Step 5: Solve for x
   x = 12,824,856.46/3,820.46
6. Step 6: Final answer
   x = 3,356.89