Finding the Fourth Proportional to 2,858.92, 3,945.58 and 1,796.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,858.92 : 3,945.58 = 1,796.86 : x
2. Step 2: Convert to fraction form
   2,858.92/3,945.58 = 1,796.86/x
3. Step 3: Cross multiply
   2,858.92x = 3,945.58 × 1,796.86
4. Step 4: Simplify right side
   2,858.92x = 7,089,654.88
5. Step 5: Solve for x
   x = 7,089,654.88/2,858.92
6. Step 6: Final answer
   x = 2,479.84