Finding the Fourth Proportional to 2,656.90, 3,983.94 and 1,339.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,656.90 : 3,983.94 = 1,339.24 : x
2. Step 2: Convert to fraction form
   2,656.90/3,983.94 = 1,339.24/x
3. Step 3: Cross multiply
   2,656.90x = 3,983.94 × 1,339.24
4. Step 4: Simplify right side
   2,656.90x = 5,335,451.81
5. Step 5: Solve for x
   x = 5,335,451.81/2,656.90
6. Step 6: Final answer
   x = 2,008.15