Finding the Fourth Proportional to 3,890.52, 5,834.72 and 1,293.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,890.52 : 5,834.72 = 1,293.12 : x
2. Step 2: Convert to fraction form
   3,890.52/5,834.72 = 1,293.12/x
3. Step 3: Cross multiply
   3,890.52x = 5,834.72 × 1,293.12
4. Step 4: Simplify right side
   3,890.52x = 7,544,993.13
5. Step 5: Solve for x
   x = 7,544,993.13/3,890.52
6. Step 6: Final answer
   x = 1,939.33