Finding the Fourth Proportional to 2,637.94, 3,956.76 and 789.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,637.94 : 3,956.76 = 789.07 : x
2. Step 2: Convert to fraction form
   2,637.94/3,956.76 = 789.07/x
3. Step 3: Cross multiply
   2,637.94x = 3,956.76 × 789.07
4. Step 4: Simplify right side
   2,637.94x = 3,122,160.61
5. Step 5: Solve for x
   x = 3,122,160.61/2,637.94
6. Step 6: Final answer
   x = 1,183.56