Finding the Fourth Proportional to 3,922.25, 5,882.13 and 1,289.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,922.25 : 5,882.13 = 1,289.15 : x
2. Step 2: Convert to fraction form
   3,922.25/5,882.13 = 1,289.15/x
3. Step 3: Cross multiply
   3,922.25x = 5,882.13 × 1,289.15
4. Step 4: Simplify right side
   3,922.25x = 7,582,947.89
5. Step 5: Solve for x
   x = 7,582,947.89/3,922.25
6. Step 6: Final answer
   x = 1,933.32