Finding the Fourth Proportional to 2,074.01, 2,861.33 and 1,286.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,074.01 : 2,861.33 = 1,286.69 : x
2. Step 2: Convert to fraction form
   2,074.01/2,861.33 = 1,286.69/x
3. Step 3: Cross multiply
   2,074.01x = 2,861.33 × 1,286.69
4. Step 4: Simplify right side
   2,074.01x = 3,681,623.96
5. Step 5: Solve for x
   x = 3,681,623.96/2,074.01
6. Step 6: Final answer
   x = 1,775.13