Finding the Fourth Proportional to 2,018.67, 3,028.17 and 785.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.67 : 3,028.17 = 785.99 : x
2. Step 2: Convert to fraction form
   2,018.67/3,028.17 = 785.99/x
3. Step 3: Cross multiply
   2,018.67x = 3,028.17 × 785.99
4. Step 4: Simplify right side
   2,018.67x = 2,380,111.34
5. Step 5: Solve for x
   x = 2,380,111.34/2,018.67
6. Step 6: Final answer
   x = 1,179.05