Finding the Fourth Proportional to 2,761.43, 4,141.63 and 786.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,761.43 : 4,141.63 = 786.88 : x
2. Step 2: Convert to fraction form
   2,761.43/4,141.63 = 786.88/x
3. Step 3: Cross multiply
   2,761.43x = 4,141.63 × 786.88
4. Step 4: Simplify right side
   2,761.43x = 3,258,971.98
5. Step 5: Solve for x
   x = 3,258,971.98/2,761.43
6. Step 6: Final answer
   x = 1,180.18