Finding the Fourth Proportional to 1,436.05, 2,154.04 and 396.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.05 : 2,154.04 = 396.04 : x
2. Step 2: Convert to fraction form
   1,436.05/2,154.04 = 396.04/x
3. Step 3: Cross multiply
   1,436.05x = 2,154.04 × 396.04
4. Step 4: Simplify right side
   1,436.05x = 853,085.89
5. Step 5: Solve for x
   x = 853,085.89/1,436.05
6. Step 6: Final answer
   x = 594.05