Finding the Fourth Proportional to 1,022,169,190.42, 1,411,757,049.72 and 687,059,919.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,022,169,190.42 : 1,411,757,049.72 = 687,059,919.88 : x
2. Step 2: Convert to fraction form
   1,022,169,190.42/1,411,757,049.72 = 687,059,919.88/x
3. Step 3: Cross multiply
   1,022,169,190.42x = 1,411,757,049.72 × 687,059,919.88
4. Step 4: Simplify right side
   1,022,169,190.42x = 969,961,685,470,648,448
5. Step 5: Solve for x
   x = 969,961,685,470,648,448/1,022,169,190.42
6. Step 6: Final answer
   x = 948,924,791.08