Finding the Fourth Proportional to 2,453.69, 3,681.24 and 722.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,453.69 : 3,681.24 = 722.31 : x
2. Step 2: Convert to fraction form
   2,453.69/3,681.24 = 722.31/x
3. Step 3: Cross multiply
   2,453.69x = 3,681.24 × 722.31
4. Step 4: Simplify right side
   2,453.69x = 2,658,996.46
5. Step 5: Solve for x
   x = 2,658,996.46/2,453.69
6. Step 6: Final answer
   x = 1,083.67