Finding the Fourth Proportional to 3,414.45, 5,118.81 and 1,072.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,414.45 : 5,118.81 = 1,072.98 : x
2. Step 2: Convert to fraction form
   3,414.45/5,118.81 = 1,072.98/x
3. Step 3: Cross multiply
   3,414.45x = 5,118.81 × 1,072.98
4. Step 4: Simplify right side
   3,414.45x = 5,492,380.75
5. Step 5: Solve for x
   x = 5,492,380.75/3,414.45
6. Step 6: Final answer
   x = 1,608.57