Finding the Fourth Proportional to 2,137.82, 3,209.71 and 1,098.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,137.82 : 3,209.71 = 1,098.71 : x
2. Step 2: Convert to fraction form
   2,137.82/3,209.71 = 1,098.71/x
3. Step 3: Cross multiply
   2,137.82x = 3,209.71 × 1,098.71
4. Step 4: Simplify right side
   2,137.82x = 3,526,524.43
5. Step 5: Solve for x
   x = 3,526,524.43/2,137.82
6. Step 6: Final answer
   x = 1,649.59