Finding the Fourth Proportional to 2,085.35, 3,127.25 and 852.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,085.35 : 3,127.25 = 852.11 : x
2. Step 2: Convert to fraction form
   2,085.35/3,127.25 = 852.11/x
3. Step 3: Cross multiply
   2,085.35x = 3,127.25 × 852.11
4. Step 4: Simplify right side
   2,085.35x = 2,664,741.10
5. Step 5: Solve for x
   x = 2,664,741.10/2,085.35
6. Step 6: Final answer
   x = 1,277.84