Finding the Fourth Proportional to 1,640,799,844.72, 2,264,303,896.37 and 898,243,907.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,640,799,844.72 : 2,264,303,896.37 = 898,243,907.47 : x
2. Step 2: Convert to fraction form
   1,640,799,844.72/2,264,303,896.37 = 898,243,907.47/x
3. Step 3: Cross multiply
   1,640,799,844.72x = 2,264,303,896.37 × 898,243,907.47
4. Step 4: Simplify right side
   1,640,799,844.72x = 2,033,897,179,574,934,784
5. Step 5: Solve for x
   x = 2,033,897,179,574,934,784/1,640,799,844.72
6. Step 6: Final answer
   x = 1,239,576,652.89