Finding the Fourth Proportional to 3,005.48, 4,142.59 and 2,409.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,005.48 : 4,142.59 = 2,409.32 : x
2. Step 2: Convert to fraction form
   3,005.48/4,142.59 = 2,409.32/x
3. Step 3: Cross multiply
   3,005.48x = 4,142.59 × 2,409.32
4. Step 4: Simplify right side
   3,005.48x = 9,980,798.20
5. Step 5: Solve for x
   x = 9,980,798.20/3,005.48
6. Step 6: Final answer
   x = 3,320.87