Finding the Fourth Proportional to 1,217,771.98, 1,680,528.60 and 673,945.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,217,771.98 : 1,680,528.60 = 673,945.27 : x
2. Step 2: Convert to fraction form
   1,217,771.98/1,680,528.60 = 673,945.27/x
3. Step 3: Cross multiply
   1,217,771.98x = 1,680,528.60 × 673,945.27
4. Step 4: Simplify right side
   1,217,771.98x = 1,132,584,301,069.72
5. Step 5: Solve for x
   x = 1,132,584,301,069.72/1,217,771.98
6. Step 6: Final answer
   x = 930,046.28