Finding the Fourth Proportional to 1,640,799,849.72, 2,264,303,903.27 and 898,243,912.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,640,799,849.72 : 2,264,303,903.27 = 898,243,912.47 : x
2. Step 2: Convert to fraction form
   1,640,799,849.72/2,264,303,903.27 = 898,243,912.47/x
3. Step 3: Cross multiply
   1,640,799,849.72x = 2,264,303,903.27 × 898,243,912.47
4. Step 4: Simplify right side
   1,640,799,849.72x = 2,033,897,197,094,337,280
5. Step 5: Solve for x
   x = 2,033,897,197,094,337,280/1,640,799,849.72
6. Step 6: Final answer
   x = 1,239,576,659.79