Finding the Fourth Proportional to 2,002.92, 3,019.83 and 1,990.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,002.92 : 3,019.83 = 1,990.44 : x
2. Step 2: Convert to fraction form
   2,002.92/3,019.83 = 1,990.44/x
3. Step 3: Cross multiply
   2,002.92x = 3,019.83 × 1,990.44
4. Step 4: Simplify right side
   2,002.92x = 6,010,790.43
5. Step 5: Solve for x
   x = 6,010,790.43/2,002.92
6. Step 6: Final answer
   x = 3,001.01