Finding the Fourth Proportional to 3,304.40, 4,957.31 and 1,113.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,304.40 : 4,957.31 = 1,113.05 : x
2. Step 2: Convert to fraction form
   3,304.40/4,957.31 = 1,113.05/x
3. Step 3: Cross multiply
   3,304.40x = 4,957.31 × 1,113.05
4. Step 4: Simplify right side
   3,304.40x = 5,517,749.07
5. Step 5: Solve for x
   x = 5,517,749.07/3,304.40
6. Step 6: Final answer
   x = 1,669.82