Finding the Fourth Proportional to 2,777,056.12, 4,164,086.37 and 1,259,911.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,777,056.12 : 4,164,086.37 = 1,259,911.21 : x
2. Step 2: Convert to fraction form
   2,777,056.12/4,164,086.37 = 1,259,911.21/x
3. Step 3: Cross multiply
   2,777,056.12x = 4,164,086.37 × 1,259,911.21
4. Step 4: Simplify right side
   2,777,056.12x = 5,246,379,099,093.32
5. Step 5: Solve for x
   x = 5,246,379,099,093.32/2,777,056.12
6. Step 6: Final answer
   x = 1,889,187.28