Finding the Fourth Proportional to 3,727.61, 5,144.59 and 2,405.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,727.61 : 5,144.59 = 2,405.16 : x
2. Step 2: Convert to fraction form
   3,727.61/5,144.59 = 2,405.16/x
3. Step 3: Cross multiply
   3,727.61x = 5,144.59 × 2,405.16
4. Step 4: Simplify right side
   3,727.61x = 12,373,584.38
5. Step 5: Solve for x
   x = 12,373,584.38/3,727.61
6. Step 6: Final answer
   x = 3,319.44