Finding the Fourth Proportional to 1,585,865.69, 2,188,496.82 and 860,713.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,585,865.69 : 2,188,496.82 = 860,713.42 : x
2. Step 2: Convert to fraction form
   1,585,865.69/2,188,496.82 = 860,713.42/x
3. Step 3: Cross multiply
   1,585,865.69x = 2,188,496.82 × 860,713.42
4. Step 4: Simplify right side
   1,585,865.69x = 1,883,668,578,297.76
5. Step 5: Solve for x
   x = 1,883,668,578,297.76/1,585,865.69
6. Step 6: Final answer
   x = 1,187,785.69