Finding the Fourth Proportional to 2,069.83, 3,105.05 and 683.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,069.83 : 3,105.05 = 683.31 : x
2. Step 2: Convert to fraction form
   2,069.83/3,105.05 = 683.31/x
3. Step 3: Cross multiply
   2,069.83x = 3,105.05 × 683.31
4. Step 4: Simplify right side
   2,069.83x = 2,121,726.35
5. Step 5: Solve for x
   x = 2,121,726.35/2,069.83
6. Step 6: Final answer
   x = 1,025.07