Finding the Fourth Proportional to 2,241.62, 3,361.71 and 780.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,241.62 : 3,361.71 = 780.38 : x
2. Step 2: Convert to fraction form
   2,241.62/3,361.71 = 780.38/x
3. Step 3: Cross multiply
   2,241.62x = 3,361.71 × 780.38
4. Step 4: Simplify right side
   2,241.62x = 2,623,411.25
5. Step 5: Solve for x
   x = 2,623,411.25/2,241.62
6. Step 6: Final answer
   x = 1,170.32