Finding the Fourth Proportional to 2,418.34, 3,628.32 and 1,120.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,418.34 : 3,628.32 = 1,120.72 : x
2. Step 2: Convert to fraction form
   2,418.34/3,628.32 = 1,120.72/x
3. Step 3: Cross multiply
   2,418.34x = 3,628.32 × 1,120.72
4. Step 4: Simplify right side
   2,418.34x = 4,066,330.79
5. Step 5: Solve for x
   x = 4,066,330.79/2,418.34
6. Step 6: Final answer
   x = 1,681.46