Finding the Fourth Proportional to 3,756.78, 5,184.26 and 2,078.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,756.78 : 5,184.26 = 2,078.10 : x
2. Step 2: Convert to fraction form
   3,756.78/5,184.26 = 2,078.10/x
3. Step 3: Cross multiply
   3,756.78x = 5,184.26 × 2,078.10
4. Step 4: Simplify right side
   3,756.78x = 10,773,410.71
5. Step 5: Solve for x
   x = 10,773,410.71/3,756.78
6. Step 6: Final answer
   x = 2,867.72