Finding the Fourth Proportional to 2,105.34, 3,157.78 and 935.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105.34 : 3,157.78 = 935.37 : x
2. Step 2: Convert to fraction form
   2,105.34/3,157.78 = 935.37/x
3. Step 3: Cross multiply
   2,105.34x = 3,157.78 × 935.37
4. Step 4: Simplify right side
   2,105.34x = 2,953,692.68
5. Step 5: Solve for x
   x = 2,953,692.68/2,105.34
6. Step 6: Final answer
   x = 1,402.95