Finding the Fourth Proportional to 2,315.91, 3,196.01 and 1,267.97

Step by Step Solution

1. Step 1: Write the proportion equation
   2,315.91 : 3,196.01 = 1,267.97 : x
2. Step 2: Convert to fraction form
   2,315.91/3,196.01 = 1,267.97/x
3. Step 3: Cross multiply
   2,315.91x = 3,196.01 × 1,267.97
4. Step 4: Simplify right side
   2,315.91x = 4,052,422.48
5. Step 5: Solve for x
   x = 4,052,422.48/2,315.91
6. Step 6: Final answer
   x = 1,749.82