Finding the Fourth Proportional to 1,981.78, 2,734.86 and 1,097.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,981.78 : 2,734.86 = 1,097.56 : x
2. Step 2: Convert to fraction form
   1,981.78/2,734.86 = 1,097.56/x
3. Step 3: Cross multiply
   1,981.78x = 2,734.86 × 1,097.56
4. Step 4: Simplify right side
   1,981.78x = 3,001,672.94
5. Step 5: Solve for x
   x = 3,001,672.94/1,981.78
6. Step 6: Final answer
   x = 1,514.63