Finding the Fourth Proportional to 2,913.69, 4,370.42 and 722.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,913.69 : 4,370.42 = 722.36 : x
2. Step 2: Convert to fraction form
   2,913.69/4,370.42 = 722.36/x
3. Step 3: Cross multiply
   2,913.69x = 4,370.42 × 722.36
4. Step 4: Simplify right side
   2,913.69x = 3,157,016.59
5. Step 5: Solve for x
   x = 3,157,016.59/2,913.69
6. Step 6: Final answer
   x = 1,083.51