Finding the Fourth Proportional to 1,076.36, 1,484.33 and 722.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,076.36 : 1,484.33 = 722.18 : x
2. Step 2: Convert to fraction form
   1,076.36/1,484.33 = 722.18/x
3. Step 3: Cross multiply
   1,076.36x = 1,484.33 × 722.18
4. Step 4: Simplify right side
   1,076.36x = 1,071,953.54
5. Step 5: Solve for x
   x = 1,071,953.54/1,076.36
6. Step 6: Final answer
   x = 995.91