Finding the Fourth Proportional to 2,180.69, 3,009.04 and 1,648.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,180.69 : 3,009.04 = 1,648.79 : x
2. Step 2: Convert to fraction form
   2,180.69/3,009.04 = 1,648.79/x
3. Step 3: Cross multiply
   2,180.69x = 3,009.04 × 1,648.79
4. Step 4: Simplify right side
   2,180.69x = 4,961,255.89
5. Step 5: Solve for x
   x = 4,961,255.89/2,180.69
6. Step 6: Final answer
   x = 2,275.09