Finding the Fourth Proportional to 3,976.61, 5,965.25 and 1,203.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,976.61 : 5,965.25 = 1,203.30 : x
2. Step 2: Convert to fraction form
   3,976.61/5,965.25 = 1,203.30/x
3. Step 3: Cross multiply
   3,976.61x = 5,965.25 × 1,203.30
4. Step 4: Simplify right side
   3,976.61x = 7,177,979.31
5. Step 5: Solve for x
   x = 7,177,979.31/3,976.61
6. Step 6: Final answer
   x = 1,805.05