Finding the Fourth Proportional to 2,179.12, 3,007.16 and 1,184.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,179.12 : 3,007.16 = 1,184.40 : x
2. Step 2: Convert to fraction form
   2,179.12/3,007.16 = 1,184.40/x
3. Step 3: Cross multiply
   2,179.12x = 3,007.16 × 1,184.40
4. Step 4: Simplify right side
   2,179.12x = 3,561,680.30
5. Step 5: Solve for x
   x = 3,561,680.30/2,179.12
6. Step 6: Final answer
   x = 1,634.46