Finding the Fourth Proportional to 2,785.22, 4,178.30 and 936.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,785.22 : 4,178.30 = 936.52 : x
2. Step 2: Convert to fraction form
   2,785.22/4,178.30 = 936.52/x
3. Step 3: Cross multiply
   2,785.22x = 4,178.30 × 936.52
4. Step 4: Simplify right side
   2,785.22x = 3,913,061.52
5. Step 5: Solve for x
   x = 3,913,061.52/2,785.22
6. Step 6: Final answer
   x = 1,404.94