Finding the Fourth Proportional to 3,401.56, 5,101.66 and 935.74

Step by Step Solution

1. Step 1: Write the proportion equation
   3,401.56 : 5,101.66 = 935.74 : x
2. Step 2: Convert to fraction form
   3,401.56/5,101.66 = 935.74/x
3. Step 3: Cross multiply
   3,401.56x = 5,101.66 × 935.74
4. Step 4: Simplify right side
   3,401.56x = 4,773,827.33
5. Step 5: Solve for x
   x = 4,773,827.33/3,401.56
6. Step 6: Final answer
   x = 1,403.42