Finding the Fourth Proportional to 2,192.45, 3,288.89 and 731.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,192.45 : 3,288.89 = 731.71 : x
2. Step 2: Convert to fraction form
   2,192.45/3,288.89 = 731.71/x
3. Step 3: Cross multiply
   2,192.45x = 3,288.89 × 731.71
4. Step 4: Simplify right side
   2,192.45x = 2,406,493.60
5. Step 5: Solve for x
   x = 2,406,493.60/2,192.45
6. Step 6: Final answer
   x = 1,097.63