Finding the Fourth Proportional to 3,399.03, 5,095.42 and 1,320.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,399.03 : 5,095.42 = 1,320.42 : x
2. Step 2: Convert to fraction form
   3,399.03/5,095.42 = 1,320.42/x
3. Step 3: Cross multiply
   3,399.03x = 5,095.42 × 1,320.42
4. Step 4: Simplify right side
   3,399.03x = 6,728,094.48
5. Step 5: Solve for x
   x = 6,728,094.48/3,399.03
6. Step 6: Final answer
   x = 1,979.42