Finding the Fourth Proportional to 2,282.48, 3,424.78 and 722.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,282.48 : 3,424.78 = 722.72 : x
2. Step 2: Convert to fraction form
   2,282.48/3,424.78 = 722.72/x
3. Step 3: Cross multiply
   2,282.48x = 3,424.78 × 722.72
4. Step 4: Simplify right side
   2,282.48x = 2,475,166.47
5. Step 5: Solve for x
   x = 2,475,166.47/2,282.48
6. Step 6: Final answer
   x = 1,084.42