Finding the Fourth Proportional to 3,867.89, 5,337.47 and 2,253.29

Step by Step Solution

1. Step 1: Write the proportion equation
   3,867.89 : 5,337.47 = 2,253.29 : x
2. Step 2: Convert to fraction form
   3,867.89/5,337.47 = 2,253.29/x
3. Step 3: Cross multiply
   3,867.89x = 5,337.47 × 2,253.29
4. Step 4: Simplify right side
   3,867.89x = 12,026,829.82
5. Step 5: Solve for x
   x = 12,026,829.82/3,867.89
6. Step 6: Final answer
   x = 3,109.41