Finding the Fourth Proportional to 820,717.39, 1,132,116.78 and 493,803.82

Step by Step Solution

1. Step 1: Write the proportion equation
   820,717.39 : 1,132,116.78 = 493,803.82 : x
2. Step 2: Convert to fraction form
   820,717.39/1,132,116.78 = 493,803.82/x
3. Step 3: Cross multiply
   820,717.39x = 1,132,116.78 × 493,803.82
4. Step 4: Simplify right side
   820,717.39x = 559,043,590,650.10
5. Step 5: Solve for x
   x = 559,043,590,650.10/820,717.39
6. Step 6: Final answer
   x = 681,164.55