Finding the Fourth Proportional to 1,436.06, 1,981.32 and 876.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.06 : 1,981.32 = 876.35 : x
2. Step 2: Convert to fraction form
   1,436.06/1,981.32 = 876.35/x
3. Step 3: Cross multiply
   1,436.06x = 1,981.32 × 876.35
4. Step 4: Simplify right side
   1,436.06x = 1,736,319.88
5. Step 5: Solve for x
   x = 1,736,319.88/1,436.06
6. Step 6: Final answer
   x = 1,209.09