Finding the Fourth Proportional to 1,727.94, 2,385.36 and 1,019.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,727.94 : 2,385.36 = 1,019.55 : x
2. Step 2: Convert to fraction form
   1,727.94/2,385.36 = 1,019.55/x
3. Step 3: Cross multiply
   1,727.94x = 2,385.36 × 1,019.55
4. Step 4: Simplify right side
   1,727.94x = 2,431,993.79
5. Step 5: Solve for x
   x = 2,431,993.79/1,727.94
6. Step 6: Final answer
   x = 1,407.45