Finding the Fourth Proportional to 3,682.42, 5,081.70 and 2,003.80

Step by Step Solution

1. Step 1: Write the proportion equation
   3,682.42 : 5,081.70 = 2,003.80 : x
2. Step 2: Convert to fraction form
   3,682.42/5,081.70 = 2,003.80/x
3. Step 3: Cross multiply
   3,682.42x = 5,081.70 × 2,003.80
4. Step 4: Simplify right side
   3,682.42x = 10,182,710.46
5. Step 5: Solve for x
   x = 10,182,710.46/3,682.42
6. Step 6: Final answer
   x = 2,765.22