Finding the Fourth Proportional to 2,087.94, 2,878.62 and 1,734.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,087.94 : 2,878.62 = 1,734.18 : x
2. Step 2: Convert to fraction form
   2,087.94/2,878.62 = 1,734.18/x
3. Step 3: Cross multiply
   2,087.94x = 2,878.62 × 1,734.18
4. Step 4: Simplify right side
   2,087.94x = 4,992,045.23
5. Step 5: Solve for x
   x = 4,992,045.23/2,087.94
6. Step 6: Final answer
   x = 2,390.89