Finding the Fourth Proportional to 2,620.38, 3,615.90 and 1,441.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,620.38 : 3,615.90 = 1,441.38 : x
2. Step 2: Convert to fraction form
   2,620.38/3,615.90 = 1,441.38/x
3. Step 3: Cross multiply
   2,620.38x = 3,615.90 × 1,441.38
4. Step 4: Simplify right side
   2,620.38x = 5,211,885.94
5. Step 5: Solve for x
   x = 5,211,885.94/2,620.38
6. Step 6: Final answer
   x = 1,988.98