Finding the Fourth Proportional to 3,797.81, 5,239.59 and 2,381.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,797.81 : 5,239.59 = 2,381.55 : x
2. Step 2: Convert to fraction form
   3,797.81/5,239.59 = 2,381.55/x
3. Step 3: Cross multiply
   3,797.81x = 5,239.59 × 2,381.55
4. Step 4: Simplify right side
   3,797.81x = 12,478,345.56
5. Step 5: Solve for x
   x = 12,478,345.56/3,797.81
6. Step 6: Final answer
   x = 3,285.67