Finding the Fourth Proportional to 2,093.32, 3,137.37 and 860.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,093.32 : 3,137.37 = 860.05 : x
2. Step 2: Convert to fraction form
   2,093.32/3,137.37 = 860.05/x
3. Step 3: Cross multiply
   2,093.32x = 3,137.37 × 860.05
4. Step 4: Simplify right side
   2,093.32x = 2,698,295.07
5. Step 5: Solve for x
   x = 2,698,295.07/2,093.32
6. Step 6: Final answer
   x = 1,289.00