Finding the Fourth Proportional to 3,863.83, 5,791.29 and 1,779.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,863.83 : 5,791.29 = 1,779.48 : x
2. Step 2: Convert to fraction form
   3,863.83/5,791.29 = 1,779.48/x
3. Step 3: Cross multiply
   3,863.83x = 5,791.29 × 1,779.48
4. Step 4: Simplify right side
   3,863.83x = 10,305,484.73
5. Step 5: Solve for x
   x = 10,305,484.73/3,863.83
6. Step 6: Final answer
   x = 2,667.17