Finding the Fourth Proportional to 3,961.39, 5,939.68 and 1,984.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,961.39 : 5,939.68 = 1,984.72 : x
2. Step 2: Convert to fraction form
   3,961.39/5,939.68 = 1,984.72/x
3. Step 3: Cross multiply
   3,961.39x = 5,939.68 × 1,984.72
4. Step 4: Simplify right side
   3,961.39x = 11,788,601.69
5. Step 5: Solve for x
   x = 11,788,601.69/3,961.39
6. Step 6: Final answer
   x = 2,975.88