Finding the Fourth Proportional to 2,189,755,164.38, 3,021,799,696.64 and 1,285,496,558.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189,755,164.38 : 3,021,799,696.64 = 1,285,496,558.69 : x
2. Step 2: Convert to fraction form
   2,189,755,164.38/3,021,799,696.64 = 1,285,496,558.69/x
3. Step 3: Cross multiply
   2,189,755,164.38x = 3,021,799,696.64 × 1,285,496,558.69
4. Step 4: Simplify right side
   2,189,755,164.38x = 3,884,513,111,071,753,216
5. Step 5: Solve for x
   x = 3,884,513,111,071,753,216/2,189,755,164.38
6. Step 6: Final answer
   x = 1,773,948,601.32