Finding the Fourth Proportional to 2,128.94, 2,940.72 and 1,464.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128.94 : 2,940.72 = 1,464.64 : x
2. Step 2: Convert to fraction form
   2,128.94/2,940.72 = 1,464.64/x
3. Step 3: Cross multiply
   2,128.94x = 2,940.72 × 1,464.64
4. Step 4: Simplify right side
   2,128.94x = 4,307,096.14
5. Step 5: Solve for x
   x = 4,307,096.14/2,128.94
6. Step 6: Final answer
   x = 2,023.12