Finding the Fourth Proportional to 2,093.45, 3,137.46 and 859.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,093.45 : 3,137.46 = 859.40 : x
2. Step 2: Convert to fraction form
   2,093.45/3,137.46 = 859.40/x
3. Step 3: Cross multiply
   2,093.45x = 3,137.46 × 859.40
4. Step 4: Simplify right side
   2,093.45x = 2,696,333.12
5. Step 5: Solve for x
   x = 2,696,333.12/2,093.45
6. Step 6: Final answer
   x = 1,287.99