Finding the Fourth Proportional to 2,289.63, 3,159.82 and 1,294.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,289.63 : 3,159.82 = 1,294.88 : x
2. Step 2: Convert to fraction form
   2,289.63/3,159.82 = 1,294.88/x
3. Step 3: Cross multiply
   2,289.63x = 3,159.82 × 1,294.88
4. Step 4: Simplify right side
   2,289.63x = 4,091,587.72
5. Step 5: Solve for x
   x = 4,091,587.72/2,289.63
6. Step 6: Final answer
   x = 1,787.01