Finding the Fourth Proportional to 2,555,616.79, 3,833,770.79 and 872,268.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,555,616.79 : 3,833,770.79 = 872,268.31 : x
2. Step 2: Convert to fraction form
   2,555,616.79/3,833,770.79 = 872,268.31/x
3. Step 3: Cross multiply
   2,555,616.79x = 3,833,770.79 × 872,268.31
4. Step 4: Simplify right side
   2,555,616.79x = 3,344,076,763,559.32
5. Step 5: Solve for x
   x = 3,344,076,763,559.32/2,555,616.79
6. Step 6: Final answer
   x = 1,308,520.42