Finding the Fourth Proportional to 2,635.81, 3,954.41 and 786.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,635.81 : 3,954.41 = 786.94 : x
2. Step 2: Convert to fraction form
   2,635.81/3,954.41 = 786.94/x
3. Step 3: Cross multiply
   2,635.81x = 3,954.41 × 786.94
4. Step 4: Simplify right side
   2,635.81x = 3,111,883.41
5. Step 5: Solve for x
   x = 3,111,883.41/2,635.81
6. Step 6: Final answer
   x = 1,180.62