Finding the Fourth Proportional to 3,612.30, 4,981.42 and 2,196.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,612.30 : 4,981.42 = 2,196.18 : x
2. Step 2: Convert to fraction form
   3,612.30/4,981.42 = 2,196.18/x
3. Step 3: Cross multiply
   3,612.30x = 4,981.42 × 2,196.18
4. Step 4: Simplify right side
   3,612.30x = 10,940,094.98
5. Step 5: Solve for x
   x = 10,940,094.98/3,612.30
6. Step 6: Final answer
   x = 3,028.57