Finding the Fourth Proportional to 2,241.16, 3,361.63 and 780.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,241.16 : 3,361.63 = 780.42 : x
2. Step 2: Convert to fraction form
   2,241.16/3,361.63 = 780.42/x
3. Step 3: Cross multiply
   2,241.16x = 3,361.63 × 780.42
4. Step 4: Simplify right side
   2,241.16x = 2,623,483.28
5. Step 5: Solve for x
   x = 2,623,483.28/2,241.16
6. Step 6: Final answer
   x = 1,170.59