Finding the Fourth Proportional to 2,460.03, 3,687.67 and 815.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,460.03 : 3,687.67 = 815.73 : x
2. Step 2: Convert to fraction form
   2,460.03/3,687.67 = 815.73/x
3. Step 3: Cross multiply
   2,460.03x = 3,687.67 × 815.73
4. Step 4: Simplify right side
   2,460.03x = 3,008,143.05
5. Step 5: Solve for x
   x = 3,008,143.05/2,460.03
6. Step 6: Final answer
   x = 1,222.81