Finding the Fourth Proportional to 3,108.72, 4,662.92 and 1,160.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,108.72 : 4,662.92 = 1,160.78 : x
2. Step 2: Convert to fraction form
   3,108.72/4,662.92 = 1,160.78/x
3. Step 3: Cross multiply
   3,108.72x = 4,662.92 × 1,160.78
4. Step 4: Simplify right side
   3,108.72x = 5,412,603.86
5. Step 5: Solve for x
   x = 5,412,603.86/3,108.72
6. Step 6: Final answer
   x = 1,741.10