Finding the Fourth Proportional to 2,301.59, 3,176.25 and 1,306.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,301.59 : 3,176.25 = 1,306.80 : x
2. Step 2: Convert to fraction form
   2,301.59/3,176.25 = 1,306.80/x
3. Step 3: Cross multiply
   2,301.59x = 3,176.25 × 1,306.80
4. Step 4: Simplify right side
   2,301.59x = 4,150,723.50
5. Step 5: Solve for x
   x = 4,150,723.50/2,301.59
6. Step 6: Final answer
   x = 1,803.42