Finding the Fourth Proportional to 2,300.80, 3,174.40 and 1,306.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,300.80 : 3,174.40 = 1,306.08 : x
2. Step 2: Convert to fraction form
   2,300.80/3,174.40 = 1,306.08/x
3. Step 3: Cross multiply
   2,300.80x = 3,174.40 × 1,306.08
4. Step 4: Simplify right side
   2,300.80x = 4,146,020.35
5. Step 5: Solve for x
   x = 4,146,020.35/2,300.80
6. Step 6: Final answer
   x = 1,801.99