Finding the Fourth Proportional to 2,196.18, 3,036.49 and 1,809.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.18 : 3,036.49 = 1,809.81 : x
2. Step 2: Convert to fraction form
   2,196.18/3,036.49 = 1,809.81/x
3. Step 3: Cross multiply
   2,196.18x = 3,036.49 × 1,809.81
4. Step 4: Simplify right side
   2,196.18x = 5,495,465.44
5. Step 5: Solve for x
   x = 5,495,465.44/2,196.18
6. Step 6: Final answer
   x = 2,502.28