Finding the Fourth Proportional to 2,185.59, 3,018.26 and 1,869.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185.59 : 3,018.26 = 1,869.03 : x
2. Step 2: Convert to fraction form
   2,185.59/3,018.26 = 1,869.03/x
3. Step 3: Cross multiply
   2,185.59x = 3,018.26 × 1,869.03
4. Step 4: Simplify right side
   2,185.59x = 5,641,209.14
5. Step 5: Solve for x
   x = 5,641,209.14/2,185.59
6. Step 6: Final answer
   x = 2,581.09