Finding the Fourth Proportional to 2,442.72, 3,664.48 and 1,210.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,442.72 : 3,664.48 = 1,210.18 : x
2. Step 2: Convert to fraction form
   2,442.72/3,664.48 = 1,210.18/x
3. Step 3: Cross multiply
   2,442.72x = 3,664.48 × 1,210.18
4. Step 4: Simplify right side
   2,442.72x = 4,434,680.41
5. Step 5: Solve for x
   x = 4,434,680.41/2,442.72
6. Step 6: Final answer
   x = 1,815.47