Finding the Fourth Proportional to 851,620.54, 1,175,196.81 and 488,789.04

Step by Step Solution

1. Step 1: Write the proportion equation
   851,620.54 : 1,175,196.81 = 488,789.04 : x
2. Step 2: Convert to fraction form
   851,620.54/1,175,196.81 = 488,789.04/x
3. Step 3: Cross multiply
   851,620.54x = 1,175,196.81 × 488,789.04
4. Step 4: Simplify right side
   851,620.54x = 574,423,320,570.96
5. Step 5: Solve for x
   x = 574,423,320,570.96/851,620.54
6. Step 6: Final answer
   x = 674,506.18