Finding the Fourth Proportional to 2,934.78, 4,401.69 and 1,086.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,934.78 : 4,401.69 = 1,086.77 : x
2. Step 2: Convert to fraction form
   2,934.78/4,401.69 = 1,086.77/x
3. Step 3: Cross multiply
   2,934.78x = 4,401.69 × 1,086.77
4. Step 4: Simplify right side
   2,934.78x = 4,783,624.64
5. Step 5: Solve for x
   x = 4,783,624.64/2,934.78
6. Step 6: Final answer
   x = 1,629.98