Finding the Fourth Proportional to 2,065.10, 3,093.60 and 1,919.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,065.10 : 3,093.60 = 1,919.30 : x
2. Step 2: Convert to fraction form
   2,065.10/3,093.60 = 1,919.30/x
3. Step 3: Cross multiply
   2,065.10x = 3,093.60 × 1,919.30
4. Step 4: Simplify right side
   2,065.10x = 5,937,546.48
5. Step 5: Solve for x
   x = 5,937,546.48/2,065.10
6. Step 6: Final answer
   x = 2,875.19