Finding the Fourth Proportional to 2,185.44, 3,006.72 and 1,808.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185.44 : 3,006.72 = 1,808.16 : x
2. Step 2: Convert to fraction form
   2,185.44/3,006.72 = 1,808.16/x
3. Step 3: Cross multiply
   2,185.44x = 3,006.72 × 1,808.16
4. Step 4: Simplify right side
   2,185.44x = 5,436,630.84
5. Step 5: Solve for x
   x = 5,436,630.84/2,185.44
6. Step 6: Final answer
   x = 2,487.66