Finding the Fourth Proportional to 1,839.62, 2,744.61 and 1,772.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,839.62 : 2,744.61 = 1,772.39 : x
2. Step 2: Convert to fraction form
   1,839.62/2,744.61 = 1,772.39/x
3. Step 3: Cross multiply
   1,839.62x = 2,744.61 × 1,772.39
4. Step 4: Simplify right side
   1,839.62x = 4,864,505.59
5. Step 5: Solve for x
   x = 4,864,505.59/1,839.62
6. Step 6: Final answer
   x = 2,644.31