Finding the Fourth Proportional to 2,209.10, 3,314.03 and 1,098.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,209.10 : 3,314.03 = 1,098.59 : x
2. Step 2: Convert to fraction form
   2,209.10/3,314.03 = 1,098.59/x
3. Step 3: Cross multiply
   2,209.10x = 3,314.03 × 1,098.59
4. Step 4: Simplify right side
   2,209.10x = 3,640,738.15
5. Step 5: Solve for x
   x = 3,640,738.15/2,209.10
6. Step 6: Final answer
   x = 1,648.07