Finding the Fourth Proportional to 1,436.29, 1,981.91 and 876.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.29 : 1,981.91 = 876.89 : x
2. Step 2: Convert to fraction form
   1,436.29/1,981.91 = 876.89/x
3. Step 3: Cross multiply
   1,436.29x = 1,981.91 × 876.89
4. Step 4: Simplify right side
   1,436.29x = 1,737,924.21
5. Step 5: Solve for x
   x = 1,737,924.21/1,436.29
6. Step 6: Final answer
   x = 1,210.01