Finding the Fourth Proportional to 3,685.73, 5,092.78 and 2,945.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,685.73 : 5,092.78 = 2,945.79 : x
2. Step 2: Convert to fraction form
   3,685.73/5,092.78 = 2,945.79/x
3. Step 3: Cross multiply
   3,685.73x = 5,092.78 × 2,945.79
4. Step 4: Simplify right side
   3,685.73x = 15,002,253.03
5. Step 5: Solve for x
   x = 15,002,253.03/3,685.73
6. Step 6: Final answer
   x = 4,070.37