Finding the Fourth Proportional to 3,978.39, 5,966.12 and 1,204.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,978.39 : 5,966.12 = 1,204.25 : x
2. Step 2: Convert to fraction form
   3,978.39/5,966.12 = 1,204.25/x
3. Step 3: Cross multiply
   3,978.39x = 5,966.12 × 1,204.25
4. Step 4: Simplify right side
   3,978.39x = 7,184,673.19
5. Step 5: Solve for x
   x = 7,184,673.19/3,978.39
6. Step 6: Final answer
   x = 1,805.92