Finding the Fourth Proportional to 1,987,983.91, 2,983,046.13 and 789,917.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,987,983.91 : 2,983,046.13 = 789,917.06 : x
2. Step 2: Convert to fraction form
   1,987,983.91/2,983,046.13 = 789,917.06/x
3. Step 3: Cross multiply
   1,987,983.91x = 2,983,046.13 × 789,917.06
4. Step 4: Simplify right side
   1,987,983.91x = 2,356,359,036,311.59
5. Step 5: Solve for x
   x = 2,356,359,036,311.59/1,987,983.91
6. Step 6: Final answer
   x = 1,185,300.86