Finding the Fourth Proportional to 1,644,236,870.49, 2,269,044,453.15 and 891,548,678.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,644,236,870.49 : 2,269,044,453.15 = 891,548,678.34 : x
2. Step 2: Convert to fraction form
   1,644,236,870.49/2,269,044,453.15 = 891,548,678.34/x
3. Step 3: Cross multiply
   1,644,236,870.49x = 2,269,044,453.15 × 891,548,678.34
4. Step 4: Simplify right side
   1,644,236,870.49x = 2,022,963,583,300,590,592
5. Step 5: Solve for x
   x = 2,022,963,583,300,590,592/1,644,236,870.49
6. Step 6: Final answer
   x = 1,230,335,859.52