Finding the Fourth Proportional to 1,452.31, 2,179.78 and 982.65

Step by Step Solution

1. Step 1: Write the proportion equation
   1,452.31 : 2,179.78 = 982.65 : x
2. Step 2: Convert to fraction form
   1,452.31/2,179.78 = 982.65/x
3. Step 3: Cross multiply
   1,452.31x = 2,179.78 × 982.65
4. Step 4: Simplify right side
   1,452.31x = 2,141,960.82
5. Step 5: Solve for x
   x = 2,141,960.82/1,452.31
6. Step 6: Final answer
   x = 1,474.86