Finding the Fourth Proportional to 3,402.72, 5,103.50 and 936.99

Step by Step Solution

1. Step 1: Write the proportion equation
   3,402.72 : 5,103.50 = 936.99 : x
2. Step 2: Convert to fraction form
   3,402.72/5,103.50 = 936.99/x
3. Step 3: Cross multiply
   3,402.72x = 5,103.50 × 936.99
4. Step 4: Simplify right side
   3,402.72x = 4,781,923.78
5. Step 5: Solve for x
   x = 4,781,923.78/3,402.72
6. Step 6: Final answer
   x = 1,405.32