Finding the Fourth Proportional to 2,289.31, 3,159.23 and 1,294.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,289.31 : 3,159.23 = 1,294.59 : x
2. Step 2: Convert to fraction form
   2,289.31/3,159.23 = 1,294.59/x
3. Step 3: Cross multiply
   2,289.31x = 3,159.23 × 1,294.59
4. Step 4: Simplify right side
   2,289.31x = 4,089,891.77
5. Step 5: Solve for x
   x = 4,089,891.77/2,289.31
6. Step 6: Final answer
   x = 1,786.52