Finding the Fourth Proportional to 1,981.41, 2,734.31 and 1,097.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,981.41 : 2,734.31 = 1,097.21 : x
2. Step 2: Convert to fraction form
   1,981.41/2,734.31 = 1,097.21/x
3. Step 3: Cross multiply
   1,981.41x = 2,734.31 × 1,097.21
4. Step 4: Simplify right side
   1,981.41x = 3,000,093.12
5. Step 5: Solve for x
   x = 3,000,093.12/1,981.41
6. Step 6: Final answer
   x = 1,514.12