Finding the Fourth Proportional to 2,371.72, 3,273 and 1,309.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,371.72 : 3,273 = 1,309.53 : x
2. Step 2: Convert to fraction form
   2,371.72/3,273 = 1,309.53/x
3. Step 3: Cross multiply
   2,371.72x = 3,273 × 1,309.53
4. Step 4: Simplify right side
   2,371.72x = 4,286,091.69
5. Step 5: Solve for x
   x = 4,286,091.69/2,371.72
6. Step 6: Final answer
   x = 1,807.17