Finding the Fourth Proportional to 837,978.44, 1,256,979.33 and 238,939.83

Step by Step Solution

1. Step 1: Write the proportion equation
   837,978.44 : 1,256,979.33 = 238,939.83 : x
2. Step 2: Convert to fraction form
   837,978.44/1,256,979.33 = 238,939.83/x
3. Step 3: Cross multiply
   837,978.44x = 1,256,979.33 × 238,939.83
4. Step 4: Simplify right side
   837,978.44x = 300,342,427,423.71
5. Step 5: Solve for x
   x = 300,342,427,423.71/837,978.44
6. Step 6: Final answer
   x = 358,413.07