Finding the Fourth Proportional to 3,240.72, 4,859.43 and 1,160.37

Step by Step Solution

1. Step 1: Write the proportion equation
   3,240.72 : 4,859.43 = 1,160.37 : x
2. Step 2: Convert to fraction form
   3,240.72/4,859.43 = 1,160.37/x
3. Step 3: Cross multiply
   3,240.72x = 4,859.43 × 1,160.37
4. Step 4: Simplify right side
   3,240.72x = 5,638,732.44
5. Step 5: Solve for x
   x = 5,638,732.44/3,240.72
6. Step 6: Final answer
   x = 1,739.96