Finding the Fourth Proportional to 2,544.06, 3,816.74 and 812.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,544.06 : 3,816.74 = 812.69 : x
2. Step 2: Convert to fraction form
   2,544.06/3,816.74 = 812.69/x
3. Step 3: Cross multiply
   2,544.06x = 3,816.74 × 812.69
4. Step 4: Simplify right side
   2,544.06x = 3,101,826.43
5. Step 5: Solve for x
   x = 3,101,826.43/2,544.06
6. Step 6: Final answer
   x = 1,219.24