Finding the Fourth Proportional to 2,168,086.63, 3,250,869.37 and 820,353.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,168,086.63 : 3,250,869.37 = 820,353.17 : x
2. Step 2: Convert to fraction form
   2,168,086.63/3,250,869.37 = 820,353.17/x
3. Step 3: Cross multiply
   2,168,086.63x = 3,250,869.37 × 820,353.17
4. Step 4: Simplify right side
   2,168,086.63x = 2,666,860,992,935.40
5. Step 5: Solve for x
   x = 2,666,860,992,935.40/2,168,086.63
6. Step 6: Final answer
   x = 1,230,052.78