Finding the Fourth Proportional to 2,845.35, 4,268.79 and 1,285.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,845.35 : 4,268.79 = 1,285.83 : x
2. Step 2: Convert to fraction form
   2,845.35/4,268.79 = 1,285.83/x
3. Step 3: Cross multiply
   2,845.35x = 4,268.79 × 1,285.83
4. Step 4: Simplify right side
   2,845.35x = 5,488,938.25
5. Step 5: Solve for x
   x = 5,488,938.25/2,845.35
6. Step 6: Final answer
   x = 1,929.09