Finding the Fourth Proportional to 3,890.94, 5,835.69 and 1,293.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,890.94 : 5,835.69 = 1,293.18 : x
2. Step 2: Convert to fraction form
   3,890.94/5,835.69 = 1,293.18/x
3. Step 3: Cross multiply
   3,890.94x = 5,835.69 × 1,293.18
4. Step 4: Simplify right side
   3,890.94x = 7,546,597.59
5. Step 5: Solve for x
   x = 7,546,597.59/3,890.94
6. Step 6: Final answer
   x = 1,939.53