Finding the Fourth Proportional to 851,581.34, 1,175,240.31 and 493,885.34

Step by Step Solution

1. Step 1: Write the proportion equation
   851,581.34 : 1,175,240.31 = 493,885.34 : x
2. Step 2: Convert to fraction form
   851,581.34/1,175,240.31 = 493,885.34/x
3. Step 3: Cross multiply
   851,581.34x = 1,175,240.31 × 493,885.34
4. Step 4: Simplify right side
   851,581.34x = 580,433,960,086.06
5. Step 5: Solve for x
   x = 580,433,960,086.06/851,581.34
6. Step 6: Final answer
   x = 681,595.44