Finding the Fourth Proportional to 2,078.61, 2,870.96 and 1,518.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,078.61 : 2,870.96 = 1,518.18 : x
2. Step 2: Convert to fraction form
   2,078.61/2,870.96 = 1,518.18/x
3. Step 3: Cross multiply
   2,078.61x = 2,870.96 × 1,518.18
4. Step 4: Simplify right side
   2,078.61x = 4,358,634.05
5. Step 5: Solve for x
   x = 4,358,634.05/2,078.61
6. Step 6: Final answer
   x = 2,096.90