Finding the Fourth Proportional to 1,982.16, 2,736.47 and 1,353.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,982.16 : 2,736.47 = 1,353.63 : x
2. Step 2: Convert to fraction form
   1,982.16/2,736.47 = 1,353.63/x
3. Step 3: Cross multiply
   1,982.16x = 2,736.47 × 1,353.63
4. Step 4: Simplify right side
   1,982.16x = 3,704,167.89
5. Step 5: Solve for x
   x = 3,704,167.89/1,982.16
6. Step 6: Final answer
   x = 1,868.75