Finding the Fourth Proportional to 835,089.32, 1,152,365.38 and 490,939.76

Step by Step Solution

1. Step 1: Write the proportion equation
   835,089.32 : 1,152,365.38 = 490,939.76 : x
2. Step 2: Convert to fraction form
   835,089.32/1,152,365.38 = 490,939.76/x
3. Step 3: Cross multiply
   835,089.32x = 1,152,365.38 × 490,939.76
4. Step 4: Simplify right side
   835,089.32x = 565,741,976,100.33
5. Step 5: Solve for x
   x = 565,741,976,100.33/835,089.32
6. Step 6: Final answer
   x = 677,462.84