Finding the Fourth Proportional to 3,626.91, 5,436.72 and 1,285.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,626.91 : 5,436.72 = 1,285.88 : x
2. Step 2: Convert to fraction form
   3,626.91/5,436.72 = 1,285.88/x
3. Step 3: Cross multiply
   3,626.91x = 5,436.72 × 1,285.88
4. Step 4: Simplify right side
   3,626.91x = 6,990,942.33
5. Step 5: Solve for x
   x = 6,990,942.33/3,626.91
6. Step 6: Final answer
   x = 1,927.52