Finding the Fourth Proportional to 2,103.29, 2,902.53 and 1,171.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.29 : 2,902.53 = 1,171.79 : x
2. Step 2: Convert to fraction form
   2,103.29/2,902.53 = 1,171.79/x
3. Step 3: Cross multiply
   2,103.29x = 2,902.53 × 1,171.79
4. Step 4: Simplify right side
   2,103.29x = 3,401,141.12
5. Step 5: Solve for x
   x = 3,401,141.12/2,103.29
6. Step 6: Final answer
   x = 1,617.06