Finding the Fourth Proportional to 2,179.85, 3,008.17 and 1,185.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,179.85 : 3,008.17 = 1,185.10 : x
2. Step 2: Convert to fraction form
   2,179.85/3,008.17 = 1,185.10/x
3. Step 3: Cross multiply
   2,179.85x = 3,008.17 × 1,185.10
4. Step 4: Simplify right side
   2,179.85x = 3,564,976.23
5. Step 5: Solve for x
   x = 3,564,976.23/2,179.85
6. Step 6: Final answer
   x = 1,635.43