Finding the Fourth Proportional to 2,018.12, 3,026.45 and 1,116.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.12 : 3,026.45 = 1,116.31 : x
2. Step 2: Convert to fraction form
   2,018.12/3,026.45 = 1,116.31/x
3. Step 3: Cross multiply
   2,018.12x = 3,026.45 × 1,116.31
4. Step 4: Simplify right side
   2,018.12x = 3,378,450.82
5. Step 5: Solve for x
   x = 3,378,450.82/2,018.12
6. Step 6: Final answer
   x = 1,674.06