Finding the Fourth Proportional to 2,162,538,735.22, 2,984,366,410.49 and 1,222,721,198.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162,538,735.22 : 2,984,366,410.49 = 1,222,721,198.98 : x
2. Step 2: Convert to fraction form
   2,162,538,735.22/2,984,366,410.49 = 1,222,721,198.98/x
3. Step 3: Cross multiply
   2,162,538,735.22x = 2,984,366,410.49 × 1,222,721,198.98
4. Step 4: Simplify right side
   2,162,538,735.22x = 3,649,048,075,629,971,456
5. Step 5: Solve for x
   x = 3,649,048,075,629,971,456/2,162,538,735.22
6. Step 6: Final answer
   x = 1,687,390,850.49