Finding the Fourth Proportional to 1,811,229,118.71, 2,499,504,648.27 and 1,028,990,890.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,811,229,118.71 : 2,499,504,648.27 = 1,028,990,890.23 : x
2. Step 2: Convert to fraction form
   1,811,229,118.71/2,499,504,648.27 = 1,028,990,890.23/x
3. Step 3: Cross multiply
   1,811,229,118.71x = 2,499,504,648.27 × 1,028,990,890.23
4. Step 4: Simplify right side
   1,811,229,118.71x = 2,571,967,513,157,370,368
5. Step 5: Solve for x
   x = 2,571,967,513,157,370,368/1,811,229,118.71
6. Step 6: Final answer
   x = 1,420,012,237.32