Finding the Fourth Proportional to 2,607.82, 3,911.97 and 852.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,607.82 : 3,911.97 = 852.83 : x
2. Step 2: Convert to fraction form
   2,607.82/3,911.97 = 852.83/x
3. Step 3: Cross multiply
   2,607.82x = 3,911.97 × 852.83
4. Step 4: Simplify right side
   2,607.82x = 3,336,241.51
5. Step 5: Solve for x
   x = 3,336,241.51/2,607.82
6. Step 6: Final answer
   x = 1,279.32