Finding the Fourth Proportional to 1,599.24, 2,401.62 and 1,440.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,599.24 : 2,401.62 = 1,440.72 : x
2. Step 2: Convert to fraction form
   1,599.24/2,401.62 = 1,440.72/x
3. Step 3: Cross multiply
   1,599.24x = 2,401.62 × 1,440.72
4. Step 4: Simplify right side
   1,599.24x = 3,460,061.97
5. Step 5: Solve for x
   x = 3,460,061.97/1,599.24
6. Step 6: Final answer
   x = 2,163.57