Finding the Fourth Proportional to 3,918.16, 5,874.72 and 1,727.92

Step by Step Solution

1. Step 1: Write the proportion equation
   3,918.16 : 5,874.72 = 1,727.92 : x
2. Step 2: Convert to fraction form
   3,918.16/5,874.72 = 1,727.92/x
3. Step 3: Cross multiply
   3,918.16x = 5,874.72 × 1,727.92
4. Step 4: Simplify right side
   3,918.16x = 10,151,046.18
5. Step 5: Solve for x
   x = 10,151,046.18/3,918.16
6. Step 6: Final answer
   x = 2,590.77