Finding the Fourth Proportional to 850,559.94, 1,173,942.72 and 488,228.72

Step by Step Solution

1. Step 1: Write the proportion equation
   850,559.94 : 1,173,942.72 = 488,228.72 : x
2. Step 2: Convert to fraction form
   850,559.94/1,173,942.72 = 488,228.72/x
3. Step 3: Cross multiply
   850,559.94x = 1,173,942.72 × 488,228.72
4. Step 4: Simplify right side
   850,559.94x = 573,152,545,669.21
5. Step 5: Solve for x
   x = 573,152,545,669.21/850,559.94
6. Step 6: Final answer
   x = 673,853.21