Finding the Fourth Proportional to 2,304.72, 3,180.42 and 1,309.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,304.72 : 3,180.42 = 1,309.95 : x
2. Step 2: Convert to fraction form
   2,304.72/3,180.42 = 1,309.95/x
3. Step 3: Cross multiply
   2,304.72x = 3,180.42 × 1,309.95
4. Step 4: Simplify right side
   2,304.72x = 4,166,191.18
5. Step 5: Solve for x
   x = 4,166,191.18/2,304.72
6. Step 6: Final answer
   x = 1,807.68