Finding the Fourth Proportional to 2,936.34, 4,404.56 and 856.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,936.34 : 4,404.56 = 856.35 : x
2. Step 2: Convert to fraction form
   2,936.34/4,404.56 = 856.35/x
3. Step 3: Cross multiply
   2,936.34x = 4,404.56 × 856.35
4. Step 4: Simplify right side
   2,936.34x = 3,771,840.67
5. Step 5: Solve for x
   x = 3,771,840.67/2,936.34
6. Step 6: Final answer
   x = 1,284.54