Finding the Fourth Proportional to 1,859.94, 2,786.04 and 1,310.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,859.94 : 2,786.04 = 1,310.34 : x
2. Step 2: Convert to fraction form
   1,859.94/2,786.04 = 1,310.34/x
3. Step 3: Cross multiply
   1,859.94x = 2,786.04 × 1,310.34
4. Step 4: Simplify right side
   1,859.94x = 3,650,659.65
5. Step 5: Solve for x
   x = 3,650,659.65/1,859.94
6. Step 6: Final answer
   x = 1,962.78