Finding the Fourth Proportional to 1,120.33, 1,546.77 and 722.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,120.33 : 1,546.77 = 722.15 : x
2. Step 2: Convert to fraction form
   1,120.33/1,546.77 = 722.15/x
3. Step 3: Cross multiply
   1,120.33x = 1,546.77 × 722.15
4. Step 4: Simplify right side
   1,120.33x = 1,116,999.96
5. Step 5: Solve for x
   x = 1,116,999.96/1,120.33
6. Step 6: Final answer
   x = 997.03