Finding the Fourth Proportional to 892,605.60, 1,231,791.72 and 484,704.12

Step by Step Solution

1. Step 1: Write the proportion equation
   892,605.60 : 1,231,791.72 = 484,704.12 : x
2. Step 2: Convert to fraction form
   892,605.60/1,231,791.72 = 484,704.12/x
3. Step 3: Cross multiply
   892,605.60x = 1,231,791.72 × 484,704.12
4. Step 4: Simplify right side
   892,605.60x = 597,054,521,665.89
5. Step 5: Solve for x
   x = 597,054,521,665.89/892,605.60
6. Step 6: Final answer
   x = 668,889.51