Finding the Fourth Proportional to 1,356.94, 1,872.25 and 852.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,356.94 : 1,872.25 = 852.89 : x
2. Step 2: Convert to fraction form
   1,356.94/1,872.25 = 852.89/x
3. Step 3: Cross multiply
   1,356.94x = 1,872.25 × 852.89
4. Step 4: Simplify right side
   1,356.94x = 1,596,811.81
5. Step 5: Solve for x
   x = 1,596,811.81/1,356.94
6. Step 6: Final answer
   x = 1,176.78