Finding the Fourth Proportional to 1,436.13, 1,982.13 and 877.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.13 : 1,982.13 = 877.10 : x
2. Step 2: Convert to fraction form
   1,436.13/1,982.13 = 877.10/x
3. Step 3: Cross multiply
   1,436.13x = 1,982.13 × 877.10
4. Step 4: Simplify right side
   1,436.13x = 1,738,516.31
5. Step 5: Solve for x
   x = 1,738,516.31/1,436.13
6. Step 6: Final answer
   x = 1,210.56