Finding the Fourth Proportional to 2,179.79, 3,008.01 and 1,185.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,179.79 : 3,008.01 = 1,185.05 : x
2. Step 2: Convert to fraction form
   2,179.79/3,008.01 = 1,185.05/x
3. Step 3: Cross multiply
   2,179.79x = 3,008.01 × 1,185.05
4. Step 4: Simplify right side
   2,179.79x = 3,564,627.21
5. Step 5: Solve for x
   x = 3,564,627.21/2,179.79
6. Step 6: Final answer
   x = 1,635.31