Finding the Fourth Proportional to 2,443.52, 3,666.36 and 1,289

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.52 : 3,666.36 = 1,289 : x
2. Step 2: Convert to fraction form
   2,443.52/3,666.36 = 1,289/x
3. Step 3: Cross multiply
   2,443.52x = 3,666.36 × 1,289
4. Step 4: Simplify right side
   2,443.52x = 4,725,938.04
5. Step 5: Solve for x
   x = 4,725,938.04/2,443.52
6. Step 6: Final answer
   x = 1,934.07