Finding the Fourth Proportional to 1,964.80, 2,950.98 and 1,144.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,964.80 : 2,950.98 = 1,144.72 : x
2. Step 2: Convert to fraction form
   1,964.80/2,950.98 = 1,144.72/x
3. Step 3: Cross multiply
   1,964.80x = 2,950.98 × 1,144.72
4. Step 4: Simplify right side
   1,964.80x = 3,378,045.83
5. Step 5: Solve for x
   x = 3,378,045.83/1,964.80
6. Step 6: Final answer
   x = 1,719.28