Finding the Fourth Proportional to 2,544.12, 3,815.04 and 900.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,544.12 : 3,815.04 = 900.24 : x
2. Step 2: Convert to fraction form
   2,544.12/3,815.04 = 900.24/x
3. Step 3: Cross multiply
   2,544.12x = 3,815.04 × 900.24
4. Step 4: Simplify right side
   2,544.12x = 3,434,451.61
5. Step 5: Solve for x
   x = 3,434,451.61/2,544.12
6. Step 6: Final answer
   x = 1,349.96