Finding the Fourth Proportional to 2,660.04, 3,969.94 and 2,590.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,660.04 : 3,969.94 = 2,590.92 : x
2. Step 2: Convert to fraction form
   2,660.04/3,969.94 = 2,590.92/x
3. Step 3: Cross multiply
   2,660.04x = 3,969.94 × 2,590.92
4. Step 4: Simplify right side
   2,660.04x = 10,285,796.94
5. Step 5: Solve for x
   x = 10,285,796.94/2,660.04
6. Step 6: Final answer
   x = 3,866.78