Finding the Fourth Proportional to 2,084,433,507.44, 3,126,750,816.72 and 685,386,802.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,084,433,507.44 : 3,126,750,816.72 = 685,386,802.72 : x
2. Step 2: Convert to fraction form
   2,084,433,507.44/3,126,750,816.72 = 685,386,802.72/x
3. Step 3: Cross multiply
   2,084,433,507.44x = 3,126,750,816.72 × 685,386,802.72
4. Step 4: Simplify right side
   2,084,433,507.44x = 2,143,033,745,173,869,568
5. Step 5: Solve for x
   x = 2,143,033,745,173,869,568/2,084,433,507.44
6. Step 6: Final answer
   x = 1,028,113,267.96