Finding the Fourth Proportional to 1,391,749.43, 1,920,582.98 and 810,936.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,391,749.43 : 1,920,582.98 = 810,936.37 : x
2. Step 2: Convert to fraction form
   1,391,749.43/1,920,582.98 = 810,936.37/x
3. Step 3: Cross multiply
   1,391,749.43x = 1,920,582.98 × 810,936.37
4. Step 4: Simplify right side
   1,391,749.43x = 1,557,470,590,084.98
5. Step 5: Solve for x
   x = 1,557,470,590,084.98/1,391,749.43
6. Step 6: Final answer
   x = 1,119,073.99