Finding the Fourth Proportional to 2,130.56, 2,942.28 and 1,469.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,130.56 : 2,942.28 = 1,469.12 : x
2. Step 2: Convert to fraction form
   2,130.56/2,942.28 = 1,469.12/x
3. Step 3: Cross multiply
   2,130.56x = 2,942.28 × 1,469.12
4. Step 4: Simplify right side
   2,130.56x = 4,322,562.39
5. Step 5: Solve for x
   x = 4,322,562.39/2,130.56
6. Step 6: Final answer
   x = 2,028.84