Finding the Fourth Proportional to 2,018.58, 3,025.99 and 786.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.58 : 3,025.99 = 786.79 : x
2. Step 2: Convert to fraction form
   2,018.58/3,025.99 = 786.79/x
3. Step 3: Cross multiply
   2,018.58x = 3,025.99 × 786.79
4. Step 4: Simplify right side
   2,018.58x = 2,380,818.67
5. Step 5: Solve for x
   x = 2,380,818.67/2,018.58
6. Step 6: Final answer
   x = 1,179.45