Finding the Fourth Proportional to 3,978.77, 5,966.69 and 1,204.62

Step by Step Solution

1. Step 1: Write the proportion equation
   3,978.77 : 5,966.69 = 1,204.62 : x
2. Step 2: Convert to fraction form
   3,978.77/5,966.69 = 1,204.62/x
3. Step 3: Cross multiply
   3,978.77x = 5,966.69 × 1,204.62
4. Step 4: Simplify right side
   3,978.77x = 7,187,588.08
5. Step 5: Solve for x
   x = 7,187,588.08/3,978.77
6. Step 6: Final answer
   x = 1,806.49