Finding the Fourth Proportional to 2,020,749,697.98, 2,788,604,905.55 and 1,128,689,442.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,020,749,697.98 : 2,788,604,905.55 = 1,128,689,442.91 : x
2. Step 2: Convert to fraction form
   2,020,749,697.98/2,788,604,905.55 = 1,128,689,442.91/x
3. Step 3: Cross multiply
   2,020,749,697.98x = 2,788,604,905.55 × 1,128,689,442.91
4. Step 4: Simplify right side
   2,020,749,697.98x = 3,147,468,917,346,494,976
5. Step 5: Solve for x
   x = 3,147,468,917,346,494,976/2,020,749,697.98
6. Step 6: Final answer
   x = 1,557,574,854.76