Finding the Fourth Proportional to 3,751.29, 5,619.60 and 3,231.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,751.29 : 5,619.60 = 3,231.27 : x
2. Step 2: Convert to fraction form
   3,751.29/5,619.60 = 3,231.27/x
3. Step 3: Cross multiply
   3,751.29x = 5,619.60 × 3,231.27
4. Step 4: Simplify right side
   3,751.29x = 18,158,444.89
5. Step 5: Solve for x
   x = 18,158,444.89/3,751.29
6. Step 6: Final answer
   x = 4,840.59