Finding the Fourth Proportional to 2,107.86, 3,159.67 and 1,064.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,107.86 : 3,159.67 = 1,064.70 : x
2. Step 2: Convert to fraction form
   2,107.86/3,159.67 = 1,064.70/x
3. Step 3: Cross multiply
   2,107.86x = 3,159.67 × 1,064.70
4. Step 4: Simplify right side
   2,107.86x = 3,364,100.65
5. Step 5: Solve for x
   x = 3,364,100.65/2,107.86
6. Step 6: Final answer
   x = 1,595.98