Finding the Fourth Proportional to 2,107.89, 3,162.98 and 1,012.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,107.89 : 3,162.98 = 1,012.37 : x
2. Step 2: Convert to fraction form
   2,107.89/3,162.98 = 1,012.37/x
3. Step 3: Cross multiply
   2,107.89x = 3,162.98 × 1,012.37
4. Step 4: Simplify right side
   2,107.89x = 3,202,092.78
5. Step 5: Solve for x
   x = 3,202,092.78/2,107.89
6. Step 6: Final answer
   x = 1,519.10