Finding the Fourth Proportional to 3,910.72, 5,865.04 and 1,718.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,910.72 : 5,865.04 = 1,718.96 : x
2. Step 2: Convert to fraction form
   3,910.72/5,865.04 = 1,718.96/x
3. Step 3: Cross multiply
   3,910.72x = 5,865.04 × 1,718.96
4. Step 4: Simplify right side
   3,910.72x = 10,081,769.16
5. Step 5: Solve for x
   x = 10,081,769.16/3,910.72
6. Step 6: Final answer
   x = 2,577.98