Finding the Fourth Proportional to 1,508,238,870.72, 2,081,337,018.84 and 873,186,143.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,508,238,870.72 : 2,081,337,018.84 = 873,186,143.28 : x
2. Step 2: Convert to fraction form
   1,508,238,870.72/2,081,337,018.84 = 873,186,143.28/x
3. Step 3: Cross multiply
   1,508,238,870.72x = 2,081,337,018.84 × 873,186,143.28
4. Step 4: Simplify right side
   1,508,238,870.72x = 1,817,394,644,346,792,192
5. Step 5: Solve for x
   x = 1,817,394,644,346,792,192/1,508,238,870.72
6. Step 6: Final answer
   x = 1,204,977,990.97