Finding the Fourth Proportional to 2,841.31, 3,920.89 and 1,582.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,841.31 : 3,920.89 = 1,582.30 : x
2. Step 2: Convert to fraction form
   2,841.31/3,920.89 = 1,582.30/x
3. Step 3: Cross multiply
   2,841.31x = 3,920.89 × 1,582.30
4. Step 4: Simplify right side
   2,841.31x = 6,203,996.73
5. Step 5: Solve for x
   x = 6,203,996.73/2,841.31
6. Step 6: Final answer
   x = 2,183.50