Finding the Fourth Proportional to 1,843,200.78, 2,765,267.82 and 513,504.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,843,200.78 : 2,765,267.82 = 513,504.78 : x
2. Step 2: Convert to fraction form
   1,843,200.78/2,765,267.82 = 513,504.78/x
3. Step 3: Cross multiply
   1,843,200.78x = 2,765,267.82 × 513,504.78
4. Step 4: Simplify right side
   1,843,200.78x = 1,419,978,243,550.18
5. Step 5: Solve for x
   x = 1,419,978,243,550.18/1,843,200.78
6. Step 6: Final answer
   x = 770,387.18