Finding the Fourth Proportional to 2,018.16, 3,026.52 and 920.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.16 : 3,026.52 = 920.52 : x
2. Step 2: Convert to fraction form
   2,018.16/3,026.52 = 920.52/x
3. Step 3: Cross multiply
   2,018.16x = 3,026.52 × 920.52
4. Step 4: Simplify right side
   2,018.16x = 2,785,972.19
5. Step 5: Solve for x
   x = 2,785,972.19/2,018.16
6. Step 6: Final answer
   x = 1,380.45