Finding the Fourth Proportional to 2,544, 3,812.16 and 1,388.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,544 : 3,812.16 = 1,388.16 : x
2. Step 2: Convert to fraction form
   2,544/3,812.16 = 1,388.16/x
3. Step 3: Cross multiply
   2,544x = 3,812.16 × 1,388.16
4. Step 4: Simplify right side
   2,544x = 5,291,888.03
5. Step 5: Solve for x
   x = 5,291,888.03/2,544
6. Step 6: Final answer
   x = 2,080.14