Finding the Fourth Proportional to 2,103.41, 2,902.71 and 1,171.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.41 : 2,902.71 = 1,171.91 : x
2. Step 2: Convert to fraction form
   2,103.41/2,902.71 = 1,171.91/x
3. Step 3: Cross multiply
   2,103.41x = 2,902.71 × 1,171.91
4. Step 4: Simplify right side
   2,103.41x = 3,401,694.50
5. Step 5: Solve for x
   x = 3,401,694.50/2,103.41
6. Step 6: Final answer
   x = 1,617.23