Finding the Fourth Proportional to 2,093.50, 3,140.79 and 939.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,093.50 : 3,140.79 = 939.25 : x
2. Step 2: Convert to fraction form
   2,093.50/3,140.79 = 939.25/x
3. Step 3: Cross multiply
   2,093.50x = 3,140.79 × 939.25
4. Step 4: Simplify right side
   2,093.50x = 2,949,987.01
5. Step 5: Solve for x
   x = 2,949,987.01/2,093.50
6. Step 6: Final answer
   x = 1,409.12