Finding the Fourth Proportional to 2,162,538,732.72, 2,984,366,407.04 and 1,222,721,196.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162,538,732.72 : 2,984,366,407.04 = 1,222,721,196.48 : x
2. Step 2: Convert to fraction form
   2,162,538,732.72/2,984,366,407.04 = 1,222,721,196.48/x
3. Step 3: Cross multiply
   2,162,538,732.72x = 2,984,366,407.04 × 1,222,721,196.48
4. Step 4: Simplify right side
   2,162,538,732.72x = 3,649,048,063,950,667,264
5. Step 5: Solve for x
   x = 3,649,048,063,950,667,264/2,162,538,732.72
6. Step 6: Final answer
   x = 1,687,390,847.04