Finding the Fourth Proportional to 2,164.42, 2,986.91 and 1,268.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,164.42 : 2,986.91 = 1,268.69 : x
2. Step 2: Convert to fraction form
   2,164.42/2,986.91 = 1,268.69/x
3. Step 3: Cross multiply
   2,164.42x = 2,986.91 × 1,268.69
4. Step 4: Simplify right side
   2,164.42x = 3,789,462.85
5. Step 5: Solve for x
   x = 3,789,462.85/2,164.42
6. Step 6: Final answer
   x = 1,750.80