Finding the Fourth Proportional to 2,241.89, 3,356.43 and 1,780.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,241.89 : 3,356.43 = 1,780.34 : x
2. Step 2: Convert to fraction form
   2,241.89/3,356.43 = 1,780.34/x
3. Step 3: Cross multiply
   2,241.89x = 3,356.43 × 1,780.34
4. Step 4: Simplify right side
   2,241.89x = 5,975,569.80
5. Step 5: Solve for x
   x = 5,975,569.80/2,241.89
6. Step 6: Final answer
   x = 2,665.42