Finding the Fourth Proportional to 820,705.88, 1,133,086.18 and 530,469.40

Step by Step Solution

1. Step 1: Write the proportion equation
   820,705.88 : 1,133,086.18 = 530,469.40 : x
2. Step 2: Convert to fraction form
   820,705.88/1,133,086.18 = 530,469.40/x
3. Step 3: Cross multiply
   820,705.88x = 1,133,086.18 × 530,469.40
4. Step 4: Simplify right side
   820,705.88x = 601,067,546,052.89
5. Step 5: Solve for x
   x = 601,067,546,052.89/820,705.88
6. Step 6: Final answer
   x = 732,378.75