Finding the Fourth Proportional to 2,656,973,997.78, 3,983,919,093.98 and 1,257,946,524.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,656,973,997.78 : 3,983,919,093.98 = 1,257,946,524.56 : x
2. Step 2: Convert to fraction form
   2,656,973,997.78/3,983,919,093.98 = 1,257,946,524.56/x
3. Step 3: Cross multiply
   2,656,973,997.78x = 3,983,919,093.98 × 1,257,946,524.56
4. Step 4: Simplify right side
   2,656,973,997.78x = 5,011,557,178,400,364,544
5. Step 5: Solve for x
   x = 5,011,557,178,400,364,544/2,656,973,997.78
6. Step 6: Final answer
   x = 1,886,189,771.74