Finding the Fourth Proportional to 2,179.96, 3,008.41 and 1,185.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,179.96 : 3,008.41 = 1,185.31 : x
2. Step 2: Convert to fraction form
   2,179.96/3,008.41 = 1,185.31/x
3. Step 3: Cross multiply
   2,179.96x = 3,008.41 × 1,185.31
4. Step 4: Simplify right side
   2,179.96x = 3,565,887.97
5. Step 5: Solve for x
   x = 3,565,887.97/2,179.96
6. Step 6: Final answer
   x = 1,635.76