Finding the Fourth Proportional to 3,984.63, 5,976.89 and 1,791.81

Step by Step Solution

1. Step 1: Write the proportion equation
   3,984.63 : 5,976.89 = 1,791.81 : x
2. Step 2: Convert to fraction form
   3,984.63/5,976.89 = 1,791.81/x
3. Step 3: Cross multiply
   3,984.63x = 5,976.89 × 1,791.81
4. Step 4: Simplify right side
   3,984.63x = 10,709,451.27
5. Step 5: Solve for x
   x = 10,709,451.27/3,984.63
6. Step 6: Final answer
   x = 2,687.69