Finding the Fourth Proportional to 2,160,584.46, 2,981,918.89 and 1,289,456.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,160,584.46 : 2,981,918.89 = 1,289,456.14 : x
2. Step 2: Convert to fraction form
   2,160,584.46/2,981,918.89 = 1,289,456.14/x
3. Step 3: Cross multiply
   2,160,584.46x = 2,981,918.89 × 1,289,456.14
4. Step 4: Simplify right side
   2,160,584.46x = 3,845,053,614,782.48
5. Step 5: Solve for x
   x = 3,845,053,614,782.48/2,160,584.46
6. Step 6: Final answer
   x = 1,779,635.88