Finding the Fourth Proportional to 1,436.98, 1,983.82 and 877.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.98 : 1,983.82 = 877.58 : x
2. Step 2: Convert to fraction form
   1,436.98/1,983.82 = 877.58/x
3. Step 3: Cross multiply
   1,436.98x = 1,983.82 × 877.58
4. Step 4: Simplify right side
   1,436.98x = 1,740,960.76
5. Step 5: Solve for x
   x = 1,740,960.76/1,436.98
6. Step 6: Final answer
   x = 1,211.54