Finding the Fourth Proportional to 2,539.92, 3,808.98 and 1,152.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,539.92 : 3,808.98 = 1,152.09 : x
2. Step 2: Convert to fraction form
   2,539.92/3,808.98 = 1,152.09/x
3. Step 3: Cross multiply
   2,539.92x = 3,808.98 × 1,152.09
4. Step 4: Simplify right side
   2,539.92x = 4,388,287.77
5. Step 5: Solve for x
   x = 4,388,287.77/2,539.92
6. Step 6: Final answer
   x = 1,727.73