Finding the Fourth Proportional to 3,660.43, 5,051.38 and 1,981.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,660.43 : 5,051.38 = 1,981.83 : x
2. Step 2: Convert to fraction form
   3,660.43/5,051.38 = 1,981.83/x
3. Step 3: Cross multiply
   3,660.43x = 5,051.38 × 1,981.83
4. Step 4: Simplify right side
   3,660.43x = 10,010,976.43
5. Step 5: Solve for x
   x = 10,010,976.43/3,660.43
6. Step 6: Final answer
   x = 2,734.92