Finding the Fourth Proportional to 1,076.72, 1,484.98 and 722.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,076.72 : 1,484.98 = 722.70 : x
2. Step 2: Convert to fraction form
   1,076.72/1,484.98 = 722.70/x
3. Step 3: Cross multiply
   1,076.72x = 1,484.98 × 722.70
4. Step 4: Simplify right side
   1,076.72x = 1,073,195.05
5. Step 5: Solve for x
   x = 1,073,195.05/1,076.72
6. Step 6: Final answer
   x = 996.73