Finding the Fourth Proportional to 3,674.80, 5,072.78 and 2,348.20

Step by Step Solution

1. Step 1: Write the proportion equation
   3,674.80 : 5,072.78 = 2,348.20 : x
2. Step 2: Convert to fraction form
   3,674.80/5,072.78 = 2,348.20/x
3. Step 3: Cross multiply
   3,674.80x = 5,072.78 × 2,348.20
4. Step 4: Simplify right side
   3,674.80x = 11,911,864.89
5. Step 5: Solve for x
   x = 11,911,864.89/3,674.80
6. Step 6: Final answer
   x = 3,241.50