Finding the Fourth Proportional to 2,862.78, 4,293.59 and 1,676.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,862.78 : 4,293.59 = 1,676.10 : x
2. Step 2: Convert to fraction form
   2,862.78/4,293.59 = 1,676.10/x
3. Step 3: Cross multiply
   2,862.78x = 4,293.59 × 1,676.10
4. Step 4: Simplify right side
   2,862.78x = 7,196,486.20
5. Step 5: Solve for x
   x = 7,196,486.20/2,862.78
6. Step 6: Final answer
   x = 2,513.81