Finding the Fourth Proportional to 3,498.38, 5,242.10 and 1,854.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,498.38 : 5,242.10 = 1,854.48 : x
2. Step 2: Convert to fraction form
   3,498.38/5,242.10 = 1,854.48/x
3. Step 3: Cross multiply
   3,498.38x = 5,242.10 × 1,854.48
4. Step 4: Simplify right side
   3,498.38x = 9,721,369.61
5. Step 5: Solve for x
   x = 9,721,369.61/3,498.38
6. Step 6: Final answer
   x = 2,778.82