Finding the Fourth Proportional to 3,696.78, 5,101.52 and 2,018.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,696.78 : 5,101.52 = 2,018.18 : x
2. Step 2: Convert to fraction form
   3,696.78/5,101.52 = 2,018.18/x
3. Step 3: Cross multiply
   3,696.78x = 5,101.52 × 2,018.18
4. Step 4: Simplify right side
   3,696.78x = 10,295,759.60
5. Step 5: Solve for x
   x = 10,295,759.60/3,696.78
6. Step 6: Final answer
   x = 2,785.06