Finding the Fourth Proportional to 2,111.24, 3,165.78 and 956.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.24 : 3,165.78 = 956.36 : x
2. Step 2: Convert to fraction form
   2,111.24/3,165.78 = 956.36/x
3. Step 3: Cross multiply
   2,111.24x = 3,165.78 × 956.36
4. Step 4: Simplify right side
   2,111.24x = 3,027,625.36
5. Step 5: Solve for x
   x = 3,027,625.36/2,111.24
6. Step 6: Final answer
   x = 1,434.05