Finding the Fourth Proportional to 1,980.52, 2,971.18 and 681.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,980.52 : 2,971.18 = 681.82 : x
2. Step 2: Convert to fraction form
   1,980.52/2,971.18 = 681.82/x
3. Step 3: Cross multiply
   1,980.52x = 2,971.18 × 681.82
4. Step 4: Simplify right side
   1,980.52x = 2,025,803.37
5. Step 5: Solve for x
   x = 2,025,803.37/1,980.52
6. Step 6: Final answer
   x = 1,022.87