Finding the Fourth Proportional to 1,982.12, 2,735.33 and 1,097.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,982.12 : 2,735.33 = 1,097.91 : x
2. Step 2: Convert to fraction form
   1,982.12/2,735.33 = 1,097.91/x
3. Step 3: Cross multiply
   1,982.12x = 2,735.33 × 1,097.91
4. Step 4: Simplify right side
   1,982.12x = 3,003,140.67
5. Step 5: Solve for x
   x = 3,003,140.67/1,982.12
6. Step 6: Final answer
   x = 1,515.12