Finding the Fourth Proportional to 1,727.72, 2,385.06 and 1,107.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,727.72 : 2,385.06 = 1,107.08 : x
2. Step 2: Convert to fraction form
   1,727.72/2,385.06 = 1,107.08/x
3. Step 3: Cross multiply
   1,727.72x = 2,385.06 × 1,107.08
4. Step 4: Simplify right side
   1,727.72x = 2,640,452.22
5. Step 5: Solve for x
   x = 2,640,452.22/1,727.72
6. Step 6: Final answer
   x = 1,528.29