Finding the Fourth Proportional to 3,696.92, 5,101.56 and 2,018.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,696.92 : 5,101.56 = 2,018.31 : x
2. Step 2: Convert to fraction form
   3,696.92/5,101.56 = 2,018.31/x
3. Step 3: Cross multiply
   3,696.92x = 5,101.56 × 2,018.31
4. Step 4: Simplify right side
   3,696.92x = 10,296,519.47
5. Step 5: Solve for x
   x = 10,296,519.47/3,696.92
6. Step 6: Final answer
   x = 2,785.17