Finding the Fourth Proportional to 2,108.62, 3,161.85 and 1,337.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,108.62 : 3,161.85 = 1,337.50 : x
2. Step 2: Convert to fraction form
   2,108.62/3,161.85 = 1,337.50/x
3. Step 3: Cross multiply
   2,108.62x = 3,161.85 × 1,337.50
4. Step 4: Simplify right side
   2,108.62x = 4,228,974.38
5. Step 5: Solve for x
   x = 4,228,974.38/2,108.62
6. Step 6: Final answer
   x = 2,005.56