Finding the Fourth Proportional to 3,412.54, 5,119.38 and 1,072.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,412.54 : 5,119.38 = 1,072.06 : x
2. Step 2: Convert to fraction form
   3,412.54/5,119.38 = 1,072.06/x
3. Step 3: Cross multiply
   3,412.54x = 5,119.38 × 1,072.06
4. Step 4: Simplify right side
   3,412.54x = 5,488,282.52
5. Step 5: Solve for x
   x = 5,488,282.52/3,412.54
6. Step 6: Final answer
   x = 1,608.27