Finding the Fourth Proportional to 1,435,887.61, 1,981,532.69 and 823,991.65

Step by Step Solution

1. Step 1: Write the proportion equation
   1,435,887.61 : 1,981,532.69 = 823,991.65 : x
2. Step 2: Convert to fraction form
   1,435,887.61/1,981,532.69 = 823,991.65/x
3. Step 3: Cross multiply
   1,435,887.61x = 1,981,532.69 × 823,991.65
4. Step 4: Simplify right side
   1,435,887.61x = 1,632,766,382,914.35
5. Step 5: Solve for x
   x = 1,632,766,382,914.35/1,435,887.61
6. Step 6: Final answer
   x = 1,137,112.94