Finding the Fourth Proportional to 1,640,799,834.02, 2,264,303,881.42 and 898,243,896.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,640,799,834.02 : 2,264,303,881.42 = 898,243,896.78 : x
2. Step 2: Convert to fraction form
   1,640,799,834.02/2,264,303,881.42 = 898,243,896.78/x
3. Step 3: Cross multiply
   1,640,799,834.02x = 2,264,303,881.42 × 898,243,896.78
4. Step 4: Simplify right side
   1,640,799,834.02x = 2,033,897,141,940,779,776
5. Step 5: Solve for x
   x = 2,033,897,141,940,779,776/1,640,799,834.02
6. Step 6: Final answer
   x = 1,239,576,638.03