Finding the Fourth Proportional to 851,567.50, 1,175,109.50 and 488,736

Step by Step Solution

1. Step 1: Write the proportion equation
   851,567.50 : 1,175,109.50 = 488,736 : x
2. Step 2: Convert to fraction form
   851,567.50/1,175,109.50 = 488,736/x
3. Step 3: Cross multiply
   851,567.50x = 1,175,109.50 × 488,736
4. Step 4: Simplify right side
   851,567.50x = 574,318,316,592
5. Step 5: Solve for x
   x = 574,318,316,592/851,567.50
6. Step 6: Final answer
   x = 674,424.89