Finding the Fourth Proportional to 1,627.74, 2,442.51 and 1,079.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,627.74 : 2,442.51 = 1,079.82 : x
2. Step 2: Convert to fraction form
   1,627.74/2,442.51 = 1,079.82/x
3. Step 3: Cross multiply
   1,627.74x = 2,442.51 × 1,079.82
4. Step 4: Simplify right side
   1,627.74x = 2,637,471.15
5. Step 5: Solve for x
   x = 2,637,471.15/1,627.74
6. Step 6: Final answer
   x = 1,620.33