Finding the Fourth Proportional to 1,145.52, 1,715.31 and 982.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,145.52 : 1,715.31 = 982.02 : x
2. Step 2: Convert to fraction form
   1,145.52/1,715.31 = 982.02/x
3. Step 3: Cross multiply
   1,145.52x = 1,715.31 × 982.02
4. Step 4: Simplify right side
   1,145.52x = 1,684,468.73
5. Step 5: Solve for x
   x = 1,684,468.73/1,145.52
6. Step 6: Final answer
   x = 1,470.48