Finding the Fourth Proportional to 2,304.59, 3,180.20 and 1,309.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,304.59 : 3,180.20 = 1,309.91 : x
2. Step 2: Convert to fraction form
   2,304.59/3,180.20 = 1,309.91/x
3. Step 3: Cross multiply
   2,304.59x = 3,180.20 × 1,309.91
4. Step 4: Simplify right side
   2,304.59x = 4,165,753.33
5. Step 5: Solve for x
   x = 4,165,753.33/2,304.59
6. Step 6: Final answer
   x = 1,807.59