Finding the Fourth Proportional to 1,571.30, 2,167.71 and 982.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,571.30 : 2,167.71 = 982.02 : x
2. Step 2: Convert to fraction form
   1,571.30/2,167.71 = 982.02/x
3. Step 3: Cross multiply
   1,571.30x = 2,167.71 × 982.02
4. Step 4: Simplify right side
   1,571.30x = 2,128,744.54
5. Step 5: Solve for x
   x = 2,128,744.54/1,571.30
6. Step 6: Final answer
   x = 1,354.77