Finding the Fourth Proportional to 1,579.52, 2,180.04 and 982.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,579.52 : 2,180.04 = 982.22 : x
2. Step 2: Convert to fraction form
   1,579.52/2,180.04 = 982.22/x
3. Step 3: Cross multiply
   1,579.52x = 2,180.04 × 982.22
4. Step 4: Simplify right side
   1,579.52x = 2,141,278.89
5. Step 5: Solve for x
   x = 2,141,278.89/1,579.52
6. Step 6: Final answer
   x = 1,355.65