Finding the Fourth Proportional to 3,671.64, 5,065.63 and 2,078.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,671.64 : 5,065.63 = 2,078.10 : x
2. Step 2: Convert to fraction form
   3,671.64/5,065.63 = 2,078.10/x
3. Step 3: Cross multiply
   3,671.64x = 5,065.63 × 2,078.10
4. Step 4: Simplify right side
   3,671.64x = 10,526,880.51
5. Step 5: Solve for x
   x = 10,526,880.51/3,671.64
6. Step 6: Final answer
   x = 2,867.08