Finding the Fourth Proportional to 2,491.36, 3,736.06 and 825.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,491.36 : 3,736.06 = 825.05 : x
2. Step 2: Convert to fraction form
   2,491.36/3,736.06 = 825.05/x
3. Step 3: Cross multiply
   2,491.36x = 3,736.06 × 825.05
4. Step 4: Simplify right side
   2,491.36x = 3,082,436.30
5. Step 5: Solve for x
   x = 3,082,436.30/2,491.36
6. Step 6: Final answer
   x = 1,237.25