Finding the Fourth Proportional to 3,958.30, 5,939.51 and 2,871.63

Step by Step Solution

1. Step 1: Write the proportion equation
   3,958.30 : 5,939.51 = 2,871.63 : x
2. Step 2: Convert to fraction form
   3,958.30/5,939.51 = 2,871.63/x
3. Step 3: Cross multiply
   3,958.30x = 5,939.51 × 2,871.63
4. Step 4: Simplify right side
   3,958.30x = 17,056,075.10
5. Step 5: Solve for x
   x = 17,056,075.10/3,958.30
6. Step 6: Final answer
   x = 4,308.94