Finding the Fourth Proportional to 2,103.48, 2,902.82 and 1,171.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.48 : 2,902.82 = 1,171.98 : x
2. Step 2: Convert to fraction form
   2,103.48/2,902.82 = 1,171.98/x
3. Step 3: Cross multiply
   2,103.48x = 2,902.82 × 1,171.98
4. Step 4: Simplify right side
   2,103.48x = 3,402,046.98
5. Step 5: Solve for x
   x = 3,402,046.98/2,103.48
6. Step 6: Final answer
   x = 1,617.34