Finding the Fourth Proportional to 1,436.99, 1,982.70 and 847.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.99 : 1,982.70 = 847.55 : x
2. Step 2: Convert to fraction form
   1,436.99/1,982.70 = 847.55/x
3. Step 3: Cross multiply
   1,436.99x = 1,982.70 × 847.55
4. Step 4: Simplify right side
   1,436.99x = 1,680,442.34
5. Step 5: Solve for x
   x = 1,680,442.34/1,436.99
6. Step 6: Final answer
   x = 1,169.42