Finding the Fourth Proportional to 3,401.61, 5,102.41 and 936.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,401.61 : 5,102.41 = 936.69 : x
2. Step 2: Convert to fraction form
   3,401.61/5,102.41 = 936.69/x
3. Step 3: Cross multiply
   3,401.61x = 5,102.41 × 936.69
4. Step 4: Simplify right side
   3,401.61x = 4,779,376.42
5. Step 5: Solve for x
   x = 4,779,376.42/3,401.61
6. Step 6: Final answer
   x = 1,405.03