Finding the Fourth Proportional to 3,853.73, 5,779.37 and 1,256.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,853.73 : 5,779.37 = 1,256.06 : x
2. Step 2: Convert to fraction form
   3,853.73/5,779.37 = 1,256.06/x
3. Step 3: Cross multiply
   3,853.73x = 5,779.37 × 1,256.06
4. Step 4: Simplify right side
   3,853.73x = 7,259,253.07
5. Step 5: Solve for x
   x = 7,259,253.07/3,853.73
6. Step 6: Final answer
   x = 1,883.69