Finding the Fourth Proportional to 2,191.92, 3,288.18 and 731.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191.92 : 3,288.18 = 731.22 : x
2. Step 2: Convert to fraction form
   2,191.92/3,288.18 = 731.22/x
3. Step 3: Cross multiply
   2,191.92x = 3,288.18 × 731.22
4. Step 4: Simplify right side
   2,191.92x = 2,404,382.98
5. Step 5: Solve for x
   x = 2,404,382.98/2,191.92
6. Step 6: Final answer
   x = 1,096.93