Finding the Fourth Proportional to 1,982.30, 2,969.64 and 1,113.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,982.30 : 2,969.64 = 1,113.98 : x
2. Step 2: Convert to fraction form
   1,982.30/2,969.64 = 1,113.98/x
3. Step 3: Cross multiply
   1,982.30x = 2,969.64 × 1,113.98
4. Step 4: Simplify right side
   1,982.30x = 3,308,119.57
5. Step 5: Solve for x
   x = 3,308,119.57/1,982.30
6. Step 6: Final answer
   x = 1,668.83