Finding the Fourth Proportional to 2,085.93, 3,126.36 and 852.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,085.93 : 3,126.36 = 852.69 : x
2. Step 2: Convert to fraction form
   2,085.93/3,126.36 = 852.69/x
3. Step 3: Cross multiply
   2,085.93x = 3,126.36 × 852.69
4. Step 4: Simplify right side
   2,085.93x = 2,665,815.91
5. Step 5: Solve for x
   x = 2,665,815.91/2,085.93
6. Step 6: Final answer
   x = 1,278.00