Finding the Fourth Proportional to 1,436.17, 1,982.31 and 846.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.17 : 1,982.31 = 846.91 : x
2. Step 2: Convert to fraction form
   1,436.17/1,982.31 = 846.91/x
3. Step 3: Cross multiply
   1,436.17x = 1,982.31 × 846.91
4. Step 4: Simplify right side
   1,436.17x = 1,678,838.16
5. Step 5: Solve for x
   x = 1,678,838.16/1,436.17
6. Step 6: Final answer
   x = 1,168.97