Finding the Fourth Proportional to 3,428.16, 5,141.52 and 1,119.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,428.16 : 5,141.52 = 1,119.12 : x
2. Step 2: Convert to fraction form
   3,428.16/5,141.52 = 1,119.12/x
3. Step 3: Cross multiply
   3,428.16x = 5,141.52 × 1,119.12
4. Step 4: Simplify right side
   3,428.16x = 5,753,977.86
5. Step 5: Solve for x
   x = 5,753,977.86/3,428.16
6. Step 6: Final answer
   x = 1,678.44