Finding the Fourth Proportional to 2,647.41, 3,971.34 and 699.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,647.41 : 3,971.34 = 699.59 : x
2. Step 2: Convert to fraction form
   2,647.41/3,971.34 = 699.59/x
3. Step 3: Cross multiply
   2,647.41x = 3,971.34 × 699.59
4. Step 4: Simplify right side
   2,647.41x = 2,778,289.89
5. Step 5: Solve for x
   x = 2,778,289.89/2,647.41
6. Step 6: Final answer
   x = 1,049.44