Finding the Fourth Proportional to 2,118.02, 3,175.67 and 731.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,118.02 : 3,175.67 = 731.23 : x
2. Step 2: Convert to fraction form
   2,118.02/3,175.67 = 731.23/x
3. Step 3: Cross multiply
   2,118.02x = 3,175.67 × 731.23
4. Step 4: Simplify right side
   2,118.02x = 2,322,139.06
5. Step 5: Solve for x
   x = 2,322,139.06/2,118.02
6. Step 6: Final answer
   x = 1,096.38