Finding the Fourth Proportional to 2,148.04, 2,964.18 and 1,216.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,148.04 : 2,964.18 = 1,216.52 : x
2. Step 2: Convert to fraction form
   2,148.04/2,964.18 = 1,216.52/x
3. Step 3: Cross multiply
   2,148.04x = 2,964.18 × 1,216.52
4. Step 4: Simplify right side
   2,148.04x = 3,605,984.25
5. Step 5: Solve for x
   x = 3,605,984.25/2,148.04
6. Step 6: Final answer
   x = 1,678.73