Finding the Fourth Proportional to 2,147.90, 2,963.23 and 1,308.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,147.90 : 2,963.23 = 1,308.29 : x
2. Step 2: Convert to fraction form
   2,147.90/2,963.23 = 1,308.29/x
3. Step 3: Cross multiply
   2,147.90x = 2,963.23 × 1,308.29
4. Step 4: Simplify right side
   2,147.90x = 3,876,764.18
5. Step 5: Solve for x
   x = 3,876,764.18/2,147.90
6. Step 6: Final answer
   x = 1,804.91