Finding the Fourth Proportional to 2,108.24, 3,162.06 and 1,231.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,108.24 : 3,162.06 = 1,231.16 : x
2. Step 2: Convert to fraction form
   2,108.24/3,162.06 = 1,231.16/x
3. Step 3: Cross multiply
   2,108.24x = 3,162.06 × 1,231.16
4. Step 4: Simplify right side
   2,108.24x = 3,892,985.98
5. Step 5: Solve for x
   x = 3,892,985.98/2,108.24
6. Step 6: Final answer
   x = 1,846.56