Finding the Fourth Proportional to 1,441.57, 1,989.42 and 852.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,441.57 : 1,989.42 = 852.10 : x
2. Step 2: Convert to fraction form
   1,441.57/1,989.42 = 852.10/x
3. Step 3: Cross multiply
   1,441.57x = 1,989.42 × 852.10
4. Step 4: Simplify right side
   1,441.57x = 1,695,184.78
5. Step 5: Solve for x
   x = 1,695,184.78/1,441.57
6. Step 6: Final answer
   x = 1,175.93