Finding the Fourth Proportional to 3,682.31, 5,081.61 and 2,003.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,682.31 : 5,081.61 = 2,003.72 : x
2. Step 2: Convert to fraction form
   3,682.31/5,081.61 = 2,003.72/x
3. Step 3: Cross multiply
   3,682.31x = 5,081.61 × 2,003.72
4. Step 4: Simplify right side
   3,682.31x = 10,182,098.18
5. Step 5: Solve for x
   x = 10,182,098.18/3,682.31
6. Step 6: Final answer
   x = 2,765.14