Finding the Fourth Proportional to 3,128.82, 4,317.75 and 1,949.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,128.82 : 4,317.75 = 1,949.82 : x
2. Step 2: Convert to fraction form
   3,128.82/4,317.75 = 1,949.82/x
3. Step 3: Cross multiply
   3,128.82x = 4,317.75 × 1,949.82
4. Step 4: Simplify right side
   3,128.82x = 8,418,835.31
5. Step 5: Solve for x
   x = 8,418,835.31/3,128.82
6. Step 6: Final answer
   x = 2,690.74