Finding the Fourth Proportional to 1,990.48, 2,983.67 and 1,441.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,990.48 : 2,983.67 = 1,441.30 : x
2. Step 2: Convert to fraction form
   1,990.48/2,983.67 = 1,441.30/x
3. Step 3: Cross multiply
   1,990.48x = 2,983.67 × 1,441.30
4. Step 4: Simplify right side
   1,990.48x = 4,300,363.57
5. Step 5: Solve for x
   x = 4,300,363.57/1,990.48
6. Step 6: Final answer
   x = 2,160.47