Finding the Fourth Proportional to 3,983.58, 5,971.32 and 1,791.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,983.58 : 5,971.32 = 1,791.72 : x
2. Step 2: Convert to fraction form
   3,983.58/5,971.32 = 1,791.72/x
3. Step 3: Cross multiply
   3,983.58x = 5,971.32 × 1,791.72
4. Step 4: Simplify right side
   3,983.58x = 10,698,933.47
5. Step 5: Solve for x
   x = 10,698,933.47/3,983.58
6. Step 6: Final answer
   x = 2,685.76