Finding the Fourth Proportional to 2,300.20, 3,174.30 and 1,305.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,300.20 : 3,174.30 = 1,305.49 : x
2. Step 2: Convert to fraction form
   2,300.20/3,174.30 = 1,305.49/x
3. Step 3: Cross multiply
   2,300.20x = 3,174.30 × 1,305.49
4. Step 4: Simplify right side
   2,300.20x = 4,144,008.97
5. Step 5: Solve for x
   x = 4,144,008.97/2,300.20
6. Step 6: Final answer
   x = 1,801.59