Finding the Fourth Proportional to 2,182.28, 3,273.86 and 722.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,182.28 : 3,273.86 = 722.45 : x
2. Step 2: Convert to fraction form
   2,182.28/3,273.86 = 722.45/x
3. Step 3: Cross multiply
   2,182.28x = 3,273.86 × 722.45
4. Step 4: Simplify right side
   2,182.28x = 2,365,210.15
5. Step 5: Solve for x
   x = 2,365,210.15/2,182.28
6. Step 6: Final answer
   x = 1,083.83