Finding the Fourth Proportional to 2,013.95, 3,018.34 and 918.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,013.95 : 3,018.34 = 918.33 : x
2. Step 2: Convert to fraction form
   2,013.95/3,018.34 = 918.33/x
3. Step 3: Cross multiply
   2,013.95x = 3,018.34 × 918.33
4. Step 4: Simplify right side
   2,013.95x = 2,771,832.17
5. Step 5: Solve for x
   x = 2,771,832.17/2,013.95
6. Step 6: Final answer
   x = 1,376.32