Finding the Fourth Proportional to 1,406.82, 1,942.18 and 847.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,406.82 : 1,942.18 = 847.43 : x
2. Step 2: Convert to fraction form
   1,406.82/1,942.18 = 847.43/x
3. Step 3: Cross multiply
   1,406.82x = 1,942.18 × 847.43
4. Step 4: Simplify right side
   1,406.82x = 1,645,851.89
5. Step 5: Solve for x
   x = 1,645,851.89/1,406.82
6. Step 6: Final answer
   x = 1,169.91