Finding the Fourth Proportional to 2,784.62, 4,172.88 and 1,304.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,784.62 : 4,172.88 = 1,304.30 : x
2. Step 2: Convert to fraction form
   2,784.62/4,172.88 = 1,304.30/x
3. Step 3: Cross multiply
   2,784.62x = 4,172.88 × 1,304.30
4. Step 4: Simplify right side
   2,784.62x = 5,442,687.38
5. Step 5: Solve for x
   x = 5,442,687.38/2,784.62
6. Step 6: Final answer
   x = 1,954.55