Finding the Fourth Proportional to 2,582.05, 3,890.31 and 2,335.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,582.05 : 3,890.31 = 2,335.54 : x
2. Step 2: Convert to fraction form
   2,582.05/3,890.31 = 2,335.54/x
3. Step 3: Cross multiply
   2,582.05x = 3,890.31 × 2,335.54
4. Step 4: Simplify right side
   2,582.05x = 9,085,970.72
5. Step 5: Solve for x
   x = 9,085,970.72/2,582.05
6. Step 6: Final answer
   x = 3,518.90