Finding the Fourth Proportional to 2,279.49, 3,417.81 and 962.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,279.49 : 3,417.81 = 962.56 : x
2. Step 2: Convert to fraction form
   2,279.49/3,417.81 = 962.56/x
3. Step 3: Cross multiply
   2,279.49x = 3,417.81 × 962.56
4. Step 4: Simplify right side
   2,279.49x = 3,289,847.86
5. Step 5: Solve for x
   x = 3,289,847.86/2,279.49
6. Step 6: Final answer
   x = 1,443.24