Finding the Fourth Proportional to 3,698.88, 5,104.56 and 2,520.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,698.88 : 5,104.56 = 2,520.48 : x
2. Step 2: Convert to fraction form
   3,698.88/5,104.56 = 2,520.48/x
3. Step 3: Cross multiply
   3,698.88x = 5,104.56 × 2,520.48
4. Step 4: Simplify right side
   3,698.88x = 12,865,941.39
5. Step 5: Solve for x
   x = 12,865,941.39/3,698.88
6. Step 6: Final answer
   x = 3,478.33