Finding the Fourth Proportional to 3,587.61, 5,383.89 and 1,396.35

Step by Step Solution

1. Step 1: Write the proportion equation
   3,587.61 : 5,383.89 = 1,396.35 : x
2. Step 2: Convert to fraction form
   3,587.61/5,383.89 = 1,396.35/x
3. Step 3: Cross multiply
   3,587.61x = 5,383.89 × 1,396.35
4. Step 4: Simplify right side
   3,587.61x = 7,517,794.80
5. Step 5: Solve for x
   x = 7,517,794.80/3,587.61
6. Step 6: Final answer
   x = 2,095.49