Finding the Fourth Proportional to 2,068,644,338.65, 2,854,789,478.85 and 1,128,907,513.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,068,644,338.65 : 2,854,789,478.85 = 1,128,907,513.72 : x
2. Step 2: Convert to fraction form
   2,068,644,338.65/2,854,789,478.85 = 1,128,907,513.72/x
3. Step 3: Cross multiply
   2,068,644,338.65x = 2,854,789,478.85 × 1,128,907,513.72
4. Step 4: Simplify right side
   2,068,644,338.65x = 3,222,793,292,762,568,192
5. Step 5: Solve for x
   x = 3,222,793,292,762,568,192/2,068,644,338.65
6. Step 6: Final answer
   x = 1,557,925,271.42