Finding the Fourth Proportional to 3,660.05, 5,050.89 and 1,981.49

Step by Step Solution

1. Step 1: Write the proportion equation
   3,660.05 : 5,050.89 = 1,981.49 : x
2. Step 2: Convert to fraction form
   3,660.05/5,050.89 = 1,981.49/x
3. Step 3: Cross multiply
   3,660.05x = 5,050.89 × 1,981.49
4. Step 4: Simplify right side
   3,660.05x = 10,008,262.77
5. Step 5: Solve for x
   x = 10,008,262.77/3,660.05
6. Step 6: Final answer
   x = 2,734.46