Finding the Fourth Proportional to 2,681.12, 4,020.86 and 1,293.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,681.12 : 4,020.86 = 1,293.59 : x
2. Step 2: Convert to fraction form
   2,681.12/4,020.86 = 1,293.59/x
3. Step 3: Cross multiply
   2,681.12x = 4,020.86 × 1,293.59
4. Step 4: Simplify right side
   2,681.12x = 5,201,317.72
5. Step 5: Solve for x
   x = 5,201,317.72/2,681.12
6. Step 6: Final answer
   x = 1,939.98