Finding the Fourth Proportional to 2,620.21, 3,615.60 and 1,441.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,620.21 : 3,615.60 = 1,441.03 : x
2. Step 2: Convert to fraction form
   2,620.21/3,615.60 = 1,441.03/x
3. Step 3: Cross multiply
   2,620.21x = 3,615.60 × 1,441.03
4. Step 4: Simplify right side
   2,620.21x = 5,210,188.07
5. Step 5: Solve for x
   x = 5,210,188.07/2,620.21
6. Step 6: Final answer
   x = 1,988.46