Finding the Fourth Proportional to 2,308.64, 3,182.16 and 1,608.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308.64 : 3,182.16 = 1,608.80 : x
2. Step 2: Convert to fraction form
   2,308.64/3,182.16 = 1,608.80/x
3. Step 3: Cross multiply
   2,308.64x = 3,182.16 × 1,608.80
4. Step 4: Simplify right side
   2,308.64x = 5,119,459.01
5. Step 5: Solve for x
   x = 5,119,459.01/2,308.64
6. Step 6: Final answer
   x = 2,217.52