Finding the Fourth Proportional to 2,191.88, 3,288.17 and 731.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191.88 : 3,288.17 = 731.37 : x
2. Step 2: Convert to fraction form
   2,191.88/3,288.17 = 731.37/x
3. Step 3: Cross multiply
   2,191.88x = 3,288.17 × 731.37
4. Step 4: Simplify right side
   2,191.88x = 2,404,865.24
5. Step 5: Solve for x
   x = 2,404,865.24/2,191.88
6. Step 6: Final answer
   x = 1,097.17