Finding the Fourth Proportional to 3,498.90, 5,243.42 and 1,939.62

Step by Step Solution

1. Step 1: Write the proportion equation
   3,498.90 : 5,243.42 = 1,939.62 : x
2. Step 2: Convert to fraction form
   3,498.90/5,243.42 = 1,939.62/x
3. Step 3: Cross multiply
   3,498.90x = 5,243.42 × 1,939.62
4. Step 4: Simplify right side
   3,498.90x = 10,170,242.30
5. Step 5: Solve for x
   x = 10,170,242.30/3,498.90
6. Step 6: Final answer
   x = 2,906.70