Finding the Fourth Proportional to 2,013.18, 3,019.37 and 1,088.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,013.18 : 3,019.37 = 1,088.57 : x
2. Step 2: Convert to fraction form
   2,013.18/3,019.37 = 1,088.57/x
3. Step 3: Cross multiply
   2,013.18x = 3,019.37 × 1,088.57
4. Step 4: Simplify right side
   2,013.18x = 3,286,775.06
5. Step 5: Solve for x
   x = 3,286,775.06/2,013.18
6. Step 6: Final answer
   x = 1,632.63