Finding the Fourth Proportional to 3,103.57, 4,283.59 and 1,908.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,103.57 : 4,283.59 = 1,908.55 : x
2. Step 2: Convert to fraction form
   3,103.57/4,283.59 = 1,908.55/x
3. Step 3: Cross multiply
   3,103.57x = 4,283.59 × 1,908.55
4. Step 4: Simplify right side
   3,103.57x = 8,175,445.69
5. Step 5: Solve for x
   x = 8,175,445.69/3,103.57
6. Step 6: Final answer
   x = 2,634.21