Finding the Fourth Proportional to 2,424.80, 3,630.72 and 1,268.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,424.80 : 3,630.72 = 1,268.12 : x
2. Step 2: Convert to fraction form
   2,424.80/3,630.72 = 1,268.12/x
3. Step 3: Cross multiply
   2,424.80x = 3,630.72 × 1,268.12
4. Step 4: Simplify right side
   2,424.80x = 4,604,188.65
5. Step 5: Solve for x
   x = 4,604,188.65/2,424.80
6. Step 6: Final answer
   x = 1,898.79