Finding the Fourth Proportional to 1,436.55, 1,982.46 and 877.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.55 : 1,982.46 = 877.05 : x
2. Step 2: Convert to fraction form
   1,436.55/1,982.46 = 877.05/x
3. Step 3: Cross multiply
   1,436.55x = 1,982.46 × 877.05
4. Step 4: Simplify right side
   1,436.55x = 1,738,716.54
5. Step 5: Solve for x
   x = 1,738,716.54/1,436.55
6. Step 6: Final answer
   x = 1,210.34