Finding the Fourth Proportional to 2,936.30, 4,404.43 and 856.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,936.30 : 4,404.43 = 856.36 : x
2. Step 2: Convert to fraction form
   2,936.30/4,404.43 = 856.36/x
3. Step 3: Cross multiply
   2,936.30x = 4,404.43 × 856.36
4. Step 4: Simplify right side
   2,936.30x = 3,771,764.52
5. Step 5: Solve for x
   x = 3,771,764.52/2,936.30
6. Step 6: Final answer
   x = 1,284.53