Finding the Fourth Proportional to 2,078.60, 2,866.20 and 2,057.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,078.60 : 2,866.20 = 2,057.54 : x
2. Step 2: Convert to fraction form
   2,078.60/2,866.20 = 2,057.54/x
3. Step 3: Cross multiply
   2,078.60x = 2,866.20 × 2,057.54
4. Step 4: Simplify right side
   2,078.60x = 5,897,321.15
5. Step 5: Solve for x
   x = 5,897,321.15/2,078.60
6. Step 6: Final answer
   x = 2,837.16