Finding the Fourth Proportional to 3,744.38, 5,620.82 and 2,185.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,744.38 : 5,620.82 = 2,185.53 : x
2. Step 2: Convert to fraction form
   3,744.38/5,620.82 = 2,185.53/x
3. Step 3: Cross multiply
   3,744.38x = 5,620.82 × 2,185.53
4. Step 4: Simplify right side
   3,744.38x = 12,284,459.81
5. Step 5: Solve for x
   x = 12,284,459.81/3,744.38
6. Step 6: Final answer
   x = 3,280.78