Finding the Fourth Proportional to 2,770,978.60, 3,826,591.38 and 2,620,018.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,770,978.60 : 3,826,591.38 = 2,620,018.24 : x
2. Step 2: Convert to fraction form
   2,770,978.60/3,826,591.38 = 2,620,018.24/x
3. Step 3: Cross multiply
   2,770,978.60x = 3,826,591.38 × 2,620,018.24
4. Step 4: Simplify right side
   2,770,978.60x = 10,025,739,212,626.77
5. Step 5: Solve for x
   x = 10,025,739,212,626.77/2,770,978.60
6. Step 6: Final answer
   x = 3,618,122.21