Finding the Fourth Proportional to 1,980.04, 2,971.71 and 682.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,980.04 : 2,971.71 = 682.42 : x
2. Step 2: Convert to fraction form
   1,980.04/2,971.71 = 682.42/x
3. Step 3: Cross multiply
   1,980.04x = 2,971.71 × 682.42
4. Step 4: Simplify right side
   1,980.04x = 2,027,954.34
5. Step 5: Solve for x
   x = 2,027,954.34/1,980.04
6. Step 6: Final answer
   x = 1,024.20