Finding the Fourth Proportional to 3,074.57, 4,611.89 and 883.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,074.57 : 4,611.89 = 883.31 : x
2. Step 2: Convert to fraction form
   3,074.57/4,611.89 = 883.31/x
3. Step 3: Cross multiply
   3,074.57x = 4,611.89 × 883.31
4. Step 4: Simplify right side
   3,074.57x = 4,073,735.67
5. Step 5: Solve for x
   x = 4,073,735.67/3,074.57
6. Step 6: Final answer
   x = 1,324.98