Finding the Fourth Proportional to 2,544.78, 3,817.29 and 791.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,544.78 : 3,817.29 = 791.00 : x
2. Step 2: Convert to fraction form
   2,544.78/3,817.29 = 791.00/x
3. Step 3: Cross multiply
   2,544.78x = 3,817.29 × 791.00
4. Step 4: Simplify right side
   2,544.78x = 3,019,457.30
5. Step 5: Solve for x
   x = 3,019,457.30/2,544.78
6. Step 6: Final answer
   x = 1,186.53