Finding the Fourth Proportional to 2,017.21, 3,023.99 and 1,401.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,017.21 : 3,023.99 = 1,401.20 : x
2. Step 2: Convert to fraction form
   2,017.21/3,023.99 = 1,401.20/x
3. Step 3: Cross multiply
   2,017.21x = 3,023.99 × 1,401.20
4. Step 4: Simplify right side
   2,017.21x = 4,237,207.78
5. Step 5: Solve for x
   x = 4,237,207.78/2,017.21
6. Step 6: Final answer
   x = 2,100.53