Finding the Fourth Proportional to 3,791.89, 5,231.37 and 2,299.29

Step by Step Solution

1. Step 1: Write the proportion equation
   3,791.89 : 5,231.37 = 2,299.29 : x
2. Step 2: Convert to fraction form
   3,791.89/5,231.37 = 2,299.29/x
3. Step 3: Cross multiply
   3,791.89x = 5,231.37 × 2,299.29
4. Step 4: Simplify right side
   3,791.89x = 12,028,436.73
5. Step 5: Solve for x
   x = 12,028,436.73/3,791.89
6. Step 6: Final answer
   x = 3,172.15