Finding the Fourth Proportional to 2,287.72, 3,162.90 and 1,731.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,287.72 : 3,162.90 = 1,731.10 : x
2. Step 2: Convert to fraction form
   2,287.72/3,162.90 = 1,731.10/x
3. Step 3: Cross multiply
   2,287.72x = 3,162.90 × 1,731.10
4. Step 4: Simplify right side
   2,287.72x = 5,475,296.19
5. Step 5: Solve for x
   x = 5,475,296.19/2,287.72
6. Step 6: Final answer
   x = 2,393.34