Finding the Fourth Proportional to 3,402.23, 5,105.25 and 1,842.20

Step by Step Solution

1. Step 1: Write the proportion equation
   3,402.23 : 5,105.25 = 1,842.20 : x
2. Step 2: Convert to fraction form
   3,402.23/5,105.25 = 1,842.20/x
3. Step 3: Cross multiply
   3,402.23x = 5,105.25 × 1,842.20
4. Step 4: Simplify right side
   3,402.23x = 9,404,891.55
5. Step 5: Solve for x
   x = 9,404,891.55/3,402.23
6. Step 6: Final answer
   x = 2,764.33