Finding the Fourth Proportional to 2,304.79, 3,184.78 and 1,640.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,304.79 : 3,184.78 = 1,640.49 : x
2. Step 2: Convert to fraction form
   2,304.79/3,184.78 = 1,640.49/x
3. Step 3: Cross multiply
   2,304.79x = 3,184.78 × 1,640.49
4. Step 4: Simplify right side
   2,304.79x = 5,224,575.62
5. Step 5: Solve for x
   x = 5,224,575.62/2,304.79
6. Step 6: Final answer
   x = 2,266.84