Finding the Fourth Proportional to 1,982.88, 2,977.56 and 1,218.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,982.88 : 2,977.56 = 1,218.24 : x
2. Step 2: Convert to fraction form
   1,982.88/2,977.56 = 1,218.24/x
3. Step 3: Cross multiply
   1,982.88x = 2,977.56 × 1,218.24
4. Step 4: Simplify right side
   1,982.88x = 3,627,382.69
5. Step 5: Solve for x
   x = 3,627,382.69/1,982.88
6. Step 6: Final answer
   x = 1,829.35