Finding the Fourth Proportional to 1,825.37, 2,738.05 and 852.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,825.37 : 2,738.05 = 852.15 : x
2. Step 2: Convert to fraction form
   1,825.37/2,738.05 = 852.15/x
3. Step 3: Cross multiply
   1,825.37x = 2,738.05 × 852.15
4. Step 4: Simplify right side
   1,825.37x = 2,333,229.31
5. Step 5: Solve for x
   x = 2,333,229.31/1,825.37
6. Step 6: Final answer
   x = 1,278.22