Finding the Fourth Proportional to 2,146.46, 2,963.79 and 1,648.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,146.46 : 2,963.79 = 1,648.31 : x
2. Step 2: Convert to fraction form
   2,146.46/2,963.79 = 1,648.31/x
3. Step 3: Cross multiply
   2,146.46x = 2,963.79 × 1,648.31
4. Step 4: Simplify right side
   2,146.46x = 4,885,244.69
5. Step 5: Solve for x
   x = 4,885,244.69/2,146.46
6. Step 6: Final answer
   x = 2,275.95