Finding the Fourth Proportional to 2,137,085.59, 3,206,227.69 and 858,590.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,137,085.59 : 3,206,227.69 = 858,590.84 : x
2. Step 2: Convert to fraction form
   2,137,085.59/3,206,227.69 = 858,590.84/x
3. Step 3: Cross multiply
   2,137,085.59x = 3,206,227.69 × 858,590.84
4. Step 4: Simplify right side
   2,137,085.59x = 2,752,837,728,191.07
5. Step 5: Solve for x
   x = 2,752,837,728,191.07/2,137,085.59
6. Step 6: Final answer
   x = 1,288,127.03