Finding the Fourth Proportional to 3,105.63, 4,285.88 and 1,779.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,105.63 : 4,285.88 = 1,779.59 : x
2. Step 2: Convert to fraction form
   3,105.63/4,285.88 = 1,779.59/x
3. Step 3: Cross multiply
   3,105.63x = 4,285.88 × 1,779.59
4. Step 4: Simplify right side
   3,105.63x = 7,627,094.03
5. Step 5: Solve for x
   x = 7,627,094.03/3,105.63
6. Step 6: Final answer
   x = 2,455.89