Finding the Fourth Proportional to 1,976.43, 2,728.37 and 1,269.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,976.43 : 2,728.37 = 1,269.30 : x
2. Step 2: Convert to fraction form
   1,976.43/2,728.37 = 1,269.30/x
3. Step 3: Cross multiply
   1,976.43x = 2,728.37 × 1,269.30
4. Step 4: Simplify right side
   1,976.43x = 3,463,113.69
5. Step 5: Solve for x
   x = 3,463,113.69/1,976.43
6. Step 6: Final answer
   x = 1,752.21