Finding the Fourth Proportional to 3,839.91, 5,297.72 and 2,266.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,839.91 : 5,297.72 = 2,266.89 : x
2. Step 2: Convert to fraction form
   3,839.91/5,297.72 = 2,266.89/x
3. Step 3: Cross multiply
   3,839.91x = 5,297.72 × 2,266.89
4. Step 4: Simplify right side
   3,839.91x = 12,009,337.16
5. Step 5: Solve for x
   x = 12,009,337.16/3,839.91
6. Step 6: Final answer
   x = 3,127.50