Finding the Fourth Proportional to 2,539.16, 3,808.15 and 1,151.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,539.16 : 3,808.15 = 1,151.57 : x
2. Step 2: Convert to fraction form
   2,539.16/3,808.15 = 1,151.57/x
3. Step 3: Cross multiply
   2,539.16x = 3,808.15 × 1,151.57
4. Step 4: Simplify right side
   2,539.16x = 4,385,351.30
5. Step 5: Solve for x
   x = 4,385,351.30/2,539.16
6. Step 6: Final answer
   x = 1,727.09