Finding the Fourth Proportional to 3,433.72, 5,151.42 and 1,125.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,433.72 : 5,151.42 = 1,125.16 : x
2. Step 2: Convert to fraction form
   3,433.72/5,151.42 = 1,125.16/x
3. Step 3: Cross multiply
   3,433.72x = 5,151.42 × 1,125.16
4. Step 4: Simplify right side
   3,433.72x = 5,796,171.73
5. Step 5: Solve for x
   x = 5,796,171.73/3,433.72
6. Step 6: Final answer
   x = 1,688.02