Finding the Fourth Proportional to 1,424.88, 1,962.24 and 1,224.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,424.88 : 1,962.24 = 1,224.10 : x
2. Step 2: Convert to fraction form
   1,424.88/1,962.24 = 1,224.10/x
3. Step 3: Cross multiply
   1,424.88x = 1,962.24 × 1,224.10
4. Step 4: Simplify right side
   1,424.88x = 2,401,977.98
5. Step 5: Solve for x
   x = 2,401,977.98/1,424.88
6. Step 6: Final answer
   x = 1,685.74