Finding the Fourth Proportional to 1,727.46, 2,384.69 and 1,055.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,727.46 : 2,384.69 = 1,055.31 : x
2. Step 2: Convert to fraction form
   1,727.46/2,384.69 = 1,055.31/x
3. Step 3: Cross multiply
   1,727.46x = 2,384.69 × 1,055.31
4. Step 4: Simplify right side
   1,727.46x = 2,516,581.93
5. Step 5: Solve for x
   x = 2,516,581.93/1,727.46
6. Step 6: Final answer
   x = 1,456.81