Finding the Fourth Proportional to 2,081.39, 2,872.05 and 1,185.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081.39 : 2,872.05 = 1,185.24 : x
2. Step 2: Convert to fraction form
   2,081.39/2,872.05 = 1,185.24/x
3. Step 3: Cross multiply
   2,081.39x = 2,872.05 × 1,185.24
4. Step 4: Simplify right side
   2,081.39x = 3,404,070.12
5. Step 5: Solve for x
   x = 3,404,070.12/2,081.39
6. Step 6: Final answer
   x = 1,635.48