Finding the Fourth Proportional to 3,114.38, 4,670.78 and 922.61

Step by Step Solution

1. Step 1: Write the proportion equation
   3,114.38 : 4,670.78 = 922.61 : x
2. Step 2: Convert to fraction form
   3,114.38/4,670.78 = 922.61/x
3. Step 3: Cross multiply
   3,114.38x = 4,670.78 × 922.61
4. Step 4: Simplify right side
   3,114.38x = 4,309,280.37
5. Step 5: Solve for x
   x = 4,309,280.37/3,114.38
6. Step 6: Final answer
   x = 1,383.67