Finding the Fourth Proportional to 3,791.34, 5,687.69 and 1,292.39

Step by Step Solution

1. Step 1: Write the proportion equation
   3,791.34 : 5,687.69 = 1,292.39 : x
2. Step 2: Convert to fraction form
   3,791.34/5,687.69 = 1,292.39/x
3. Step 3: Cross multiply
   3,791.34x = 5,687.69 × 1,292.39
4. Step 4: Simplify right side
   3,791.34x = 7,350,707.22
5. Step 5: Solve for x
   x = 7,350,707.22/3,791.34
6. Step 6: Final answer
   x = 1,938.82