Finding the Fourth Proportional to 2,308,578.38, 3,185,831.49 and 1,289,983.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308,578.38 : 3,185,831.49 = 1,289,983.94 : x
2. Step 2: Convert to fraction form
   2,308,578.38/3,185,831.49 = 1,289,983.94/x
3. Step 3: Cross multiply
   2,308,578.38x = 3,185,831.49 × 1,289,983.94
4. Step 4: Simplify right side
   2,308,578.38x = 4,109,671,457,646.27
5. Step 5: Solve for x
   x = 4,109,671,457,646.27/2,308,578.38
6. Step 6: Final answer
   x = 1,780,174.11