Finding the Fourth Proportional to 1,585,606.58, 2,188,142.83 and 860,454.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,585,606.58 : 2,188,142.83 = 860,454.13 : x
2. Step 2: Convert to fraction form
   1,585,606.58/2,188,142.83 = 860,454.13/x
3. Step 3: Cross multiply
   1,585,606.58x = 2,188,142.83 × 860,454.13
4. Step 4: Simplify right side
   1,585,606.58x = 1,882,796,535,103.39
5. Step 5: Solve for x
   x = 1,882,796,535,103.39/1,585,606.58
6. Step 6: Final answer
   x = 1,187,429.82