Finding the Fourth Proportional to 3,382.72, 5,074.40 and 1,074.24

Step by Step Solution

1. Step 1: Write the proportion equation
   3,382.72 : 5,074.40 = 1,074.24 : x
2. Step 2: Convert to fraction form
   3,382.72/5,074.40 = 1,074.24/x
3. Step 3: Cross multiply
   3,382.72x = 5,074.40 × 1,074.24
4. Step 4: Simplify right side
   3,382.72x = 5,451,123.46
5. Step 5: Solve for x
   x = 5,451,123.46/3,382.72
6. Step 6: Final answer
   x = 1,611.46