Finding the Fourth Proportional to 3,865.22, 5,335.37 and 2,293.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,865.22 : 5,335.37 = 2,293.31 : x
2. Step 2: Convert to fraction form
   3,865.22/5,335.37 = 2,293.31/x
3. Step 3: Cross multiply
   3,865.22x = 5,335.37 × 2,293.31
4. Step 4: Simplify right side
   3,865.22x = 12,235,667.85
5. Step 5: Solve for x
   x = 12,235,667.85/3,865.22
6. Step 6: Final answer
   x = 3,165.58