Finding the Fourth Proportional to 1,323.54, 1,827.33 and 851.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,323.54 : 1,827.33 = 851.61 : x
2. Step 2: Convert to fraction form
   1,323.54/1,827.33 = 851.61/x
3. Step 3: Cross multiply
   1,323.54x = 1,827.33 × 851.61
4. Step 4: Simplify right side
   1,323.54x = 1,556,176.16
5. Step 5: Solve for x
   x = 1,556,176.16/1,323.54
6. Step 6: Final answer
   x = 1,175.77