Finding the Fourth Proportional to 870,168.59, 1,200,904.99 and 483,020.38

Step by Step Solution

1. Step 1: Write the proportion equation
   870,168.59 : 1,200,904.99 = 483,020.38 : x
2. Step 2: Convert to fraction form
   870,168.59/1,200,904.99 = 483,020.38/x
3. Step 3: Cross multiply
   870,168.59x = 1,200,904.99 × 483,020.38
4. Step 4: Simplify right side
   870,168.59x = 580,061,584,907.28
5. Step 5: Solve for x
   x = 580,061,584,907.28/870,168.59
6. Step 6: Final answer
   x = 666,608.28