Finding the Fourth Proportional to 3,791.72, 5,686.86 and 1,293.02

Step by Step Solution

1. Step 1: Write the proportion equation
   3,791.72 : 5,686.86 = 1,293.02 : x
2. Step 2: Convert to fraction form
   3,791.72/5,686.86 = 1,293.02/x
3. Step 3: Cross multiply
   3,791.72x = 5,686.86 × 1,293.02
4. Step 4: Simplify right side
   3,791.72x = 7,353,223.72
5. Step 5: Solve for x
   x = 7,353,223.72/3,791.72
6. Step 6: Final answer
   x = 1,939.28