Finding the Fourth Proportional to 2,768.73, 4,156.47 and 1,289.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,768.73 : 4,156.47 = 1,289.37 : x
2. Step 2: Convert to fraction form
   2,768.73/4,156.47 = 1,289.37/x
3. Step 3: Cross multiply
   2,768.73x = 4,156.47 × 1,289.37
4. Step 4: Simplify right side
   2,768.73x = 5,359,227.72
5. Step 5: Solve for x
   x = 5,359,227.72/2,768.73
6. Step 6: Final answer
   x = 1,935.63