Finding the Fourth Proportional to 2,420.47, 3,627.06 and 1,120.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,420.47 : 3,627.06 = 1,120.42 : x
2. Step 2: Convert to fraction form
   2,420.47/3,627.06 = 1,120.42/x
3. Step 3: Cross multiply
   2,420.47x = 3,627.06 × 1,120.42
4. Step 4: Simplify right side
   2,420.47x = 4,063,830.57
5. Step 5: Solve for x
   x = 4,063,830.57/2,420.47
6. Step 6: Final answer
   x = 1,678.94