Finding the Fourth Proportional to 1,728.03, 2,385 and 1,019.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,728.03 : 2,385 = 1,019.82 : x
2. Step 2: Convert to fraction form
   1,728.03/2,385 = 1,019.82/x
3. Step 3: Cross multiply
   1,728.03x = 2,385 × 1,019.82
4. Step 4: Simplify right side
   1,728.03x = 2,432,270.70
5. Step 5: Solve for x
   x = 2,432,270.70/1,728.03
6. Step 6: Final answer
   x = 1,407.54