Finding the Fourth Proportional to 2,412.32, 3,618.56 and 852.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,412.32 : 3,618.56 = 852.11 : x
2. Step 2: Convert to fraction form
   2,412.32/3,618.56 = 852.11/x
3. Step 3: Cross multiply
   2,412.32x = 3,618.56 × 852.11
4. Step 4: Simplify right side
   2,412.32x = 3,083,411.16
5. Step 5: Solve for x
   x = 3,083,411.16/2,412.32
6. Step 6: Final answer
   x = 1,278.19