Finding the Fourth Proportional to 1,402.89, 1,935.71 and 843.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,402.89 : 1,935.71 = 843.16 : x
2. Step 2: Convert to fraction form
   1,402.89/1,935.71 = 843.16/x
3. Step 3: Cross multiply
   1,402.89x = 1,935.71 × 843.16
4. Step 4: Simplify right side
   1,402.89x = 1,632,115.72
5. Step 5: Solve for x
   x = 1,632,115.72/1,402.89
6. Step 6: Final answer
   x = 1,163.40