Finding the Fourth Proportional to 1,728.99, 2,384.69 and 1,099.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,728.99 : 2,384.69 = 1,099.62 : x
2. Step 2: Convert to fraction form
   1,728.99/2,384.69 = 1,099.62/x
3. Step 3: Cross multiply
   1,728.99x = 2,384.69 × 1,099.62
4. Step 4: Simplify right side
   1,728.99x = 2,622,247.32
5. Step 5: Solve for x
   x = 2,622,247.32/1,728.99
6. Step 6: Final answer
   x = 1,516.64