Finding the Fourth Proportional to 3,113.71, 4,671.57 and 922.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,113.71 : 4,671.57 = 922.48 : x
2. Step 2: Convert to fraction form
   3,113.71/4,671.57 = 922.48/x
3. Step 3: Cross multiply
   3,113.71x = 4,671.57 × 922.48
4. Step 4: Simplify right side
   3,113.71x = 4,309,429.89
5. Step 5: Solve for x
   x = 4,309,429.89/3,113.71
6. Step 6: Final answer
   x = 1,384.02