Finding the Fourth Proportional to 2,936.42, 4,404.70 and 856.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,936.42 : 4,404.70 = 856.37 : x
2. Step 2: Convert to fraction form
   2,936.42/4,404.70 = 856.37/x
3. Step 3: Cross multiply
   2,936.42x = 4,404.70 × 856.37
4. Step 4: Simplify right side
   2,936.42x = 3,772,048.50
5. Step 5: Solve for x
   x = 3,772,048.50/2,936.42
6. Step 6: Final answer
   x = 1,284.58