Finding the Fourth Proportional to 2,147.29, 2,963.72 and 1,308.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,147.29 : 2,963.72 = 1,308.27 : x
2. Step 2: Convert to fraction form
   2,147.29/2,963.72 = 1,308.27/x
3. Step 3: Cross multiply
   2,147.29x = 2,963.72 × 1,308.27
4. Step 4: Simplify right side
   2,147.29x = 3,877,345.96
5. Step 5: Solve for x
   x = 3,877,345.96/2,147.29
6. Step 6: Final answer
   x = 1,805.69