Finding the Fourth Proportional to 851,379.63, 1,277,380.89 and 396,188.04

Step by Step Solution

1. Step 1: Write the proportion equation
   851,379.63 : 1,277,380.89 = 396,188.04 : x
2. Step 2: Convert to fraction form
   851,379.63/1,277,380.89 = 396,188.04/x
3. Step 3: Cross multiply
   851,379.63x = 1,277,380.89 × 396,188.04
4. Step 4: Simplify right side
   851,379.63x = 506,083,031,142.56
5. Step 5: Solve for x
   x = 506,083,031,142.56/851,379.63
6. Step 6: Final answer
   x = 594,426.99