Finding the Fourth Proportional to 2,179.94, 3,008.26 and 1,185.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,179.94 : 3,008.26 = 1,185.20 : x
2. Step 2: Convert to fraction form
   2,179.94/3,008.26 = 1,185.20/x
3. Step 3: Cross multiply
   2,179.94x = 3,008.26 × 1,185.20
4. Step 4: Simplify right side
   2,179.94x = 3,565,368.78
5. Step 5: Solve for x
   x = 3,565,368.78/2,179.94
6. Step 6: Final answer
   x = 1,635.54