Finding the Fourth Proportional to 2,418.16, 3,624.40 and 1,116.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,418.16 : 3,624.40 = 1,116.88 : x
2. Step 2: Convert to fraction form
   2,418.16/3,624.40 = 1,116.88/x
3. Step 3: Cross multiply
   2,418.16x = 3,624.40 × 1,116.88
4. Step 4: Simplify right side
   2,418.16x = 4,048,019.87
5. Step 5: Solve for x
   x = 4,048,019.87/2,418.16
6. Step 6: Final answer
   x = 1,674.01