Finding the Fourth Proportional to 2,019.51, 2,784.33 and 1,310.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.51 : 2,784.33 = 1,310.11 : x
2. Step 2: Convert to fraction form
   2,019.51/2,784.33 = 1,310.11/x
3. Step 3: Cross multiply
   2,019.51x = 2,784.33 × 1,310.11
4. Step 4: Simplify right side
   2,019.51x = 3,647,771.62
5. Step 5: Solve for x
   x = 3,647,771.62/2,019.51
6. Step 6: Final answer
   x = 1,806.27