Finding the Fourth Proportional to 776,978.86, 1,165,648.58 and 244,486.05

Step by Step Solution

1. Step 1: Write the proportion equation
   776,978.86 : 1,165,648.58 = 244,486.05 : x
2. Step 2: Convert to fraction form
   776,978.86/1,165,648.58 = 244,486.05/x
3. Step 3: Cross multiply
   776,978.86x = 1,165,648.58 × 244,486.05
4. Step 4: Simplify right side
   776,978.86x = 284,984,817,623.52
5. Step 5: Solve for x
   x = 284,984,817,623.52/776,978.86
6. Step 6: Final answer
   x = 366,785.81