Finding the Fourth Proportional to 2,082,780.94, 3,124,470.23 and 643,589.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,082,780.94 : 3,124,470.23 = 643,589.98 : x
2. Step 2: Convert to fraction form
   2,082,780.94/3,124,470.23 = 643,589.98/x
3. Step 3: Cross multiply
   2,082,780.94x = 3,124,470.23 × 643,589.98
4. Step 4: Simplify right side
   2,082,780.94x = 2,010,877,732,836.30
5. Step 5: Solve for x
   x = 2,010,877,732,836.30/2,082,780.94
6. Step 6: Final answer
   x = 965,477.31