Finding the Fourth Proportional to 1,963.91, 2,710.46 and 1,267.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,963.91 : 2,710.46 = 1,267.31 : x
2. Step 2: Convert to fraction form
   1,963.91/2,710.46 = 1,267.31/x
3. Step 3: Cross multiply
   1,963.91x = 2,710.46 × 1,267.31
4. Step 4: Simplify right side
   1,963.91x = 3,434,993.06
5. Step 5: Solve for x
   x = 3,434,993.06/1,963.91
6. Step 6: Final answer
   x = 1,749.06