Finding the Fourth Proportional to 2,656,973,994.27, 3,983,919,088.72 and 1,257,946,521.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,656,973,994.27 : 3,983,919,088.72 = 1,257,946,521.06 : x
2. Step 2: Convert to fraction form
   2,656,973,994.27/3,983,919,088.72 = 1,257,946,521.06/x
3. Step 3: Cross multiply
   2,656,973,994.27x = 3,983,919,088.72 × 1,257,946,521.06
4. Step 4: Simplify right side
   2,656,973,994.27x = 5,011,557,157,839,849,472
5. Step 5: Solve for x
   x = 5,011,557,157,839,849,472/2,656,973,994.27
6. Step 6: Final answer
   x = 1,886,189,766.50