Finding the Fourth Proportional to 1,436.33, 2,153.33 and 887.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.33 : 2,153.33 = 887.35 : x
2. Step 2: Convert to fraction form
   1,436.33/2,153.33 = 887.35/x
3. Step 3: Cross multiply
   1,436.33x = 2,153.33 × 887.35
4. Step 4: Simplify right side
   1,436.33x = 1,910,757.38
5. Step 5: Solve for x
   x = 1,910,757.38/1,436.33
6. Step 6: Final answer
   x = 1,330.31