Finding the Fourth Proportional to 3,400.56, 5,100.82 and 935.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,400.56 : 5,100.82 = 935.72 : x
2. Step 2: Convert to fraction form
   3,400.56/5,100.82 = 935.72/x
3. Step 3: Cross multiply
   3,400.56x = 5,100.82 × 935.72
4. Step 4: Simplify right side
   3,400.56x = 4,772,939.29
5. Step 5: Solve for x
   x = 4,772,939.29/3,400.56
6. Step 6: Final answer
   x = 1,403.57