Finding the Fourth Proportional to 1,585,536.56, 2,188,046.33 and 860,384.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,585,536.56 : 2,188,046.33 = 860,384.43 : x
2. Step 2: Convert to fraction form
   1,585,536.56/2,188,046.33 = 860,384.43/x
3. Step 3: Cross multiply
   1,585,536.56x = 2,188,046.33 × 860,384.43
4. Step 4: Simplify right side
   1,585,536.56x = 1,882,560,998,214.82
5. Step 5: Solve for x
   x = 1,882,560,998,214.82/1,585,536.56
6. Step 6: Final answer
   x = 1,187,333.71