Finding the Fourth Proportional to 3,869.96, 5,335.79 and 3,271.37

Step by Step Solution

1. Step 1: Write the proportion equation
   3,869.96 : 5,335.79 = 3,271.37 : x
2. Step 2: Convert to fraction form
   3,869.96/5,335.79 = 3,271.37/x
3. Step 3: Cross multiply
   3,869.96x = 5,335.79 × 3,271.37
4. Step 4: Simplify right side
   3,869.96x = 17,455,300.30
5. Step 5: Solve for x
   x = 17,455,300.30/3,869.96
6. Step 6: Final answer
   x = 4,510.47