Finding the Fourth Proportional to 2,409.78, 3,616.72 and 949.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,409.78 : 3,616.72 = 949.96 : x
2. Step 2: Convert to fraction form
   2,409.78/3,616.72 = 949.96/x
3. Step 3: Cross multiply
   2,409.78x = 3,616.72 × 949.96
4. Step 4: Simplify right side
   2,409.78x = 3,435,741.48
5. Step 5: Solve for x
   x = 3,435,741.48/2,409.78
6. Step 6: Final answer
   x = 1,425.75