Finding the Fourth Proportional to 1,432.98, 2,144.61 and 1,109.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,432.98 : 2,144.61 = 1,109.79 : x
2. Step 2: Convert to fraction form
   1,432.98/2,144.61 = 1,109.79/x
3. Step 3: Cross multiply
   1,432.98x = 2,144.61 × 1,109.79
4. Step 4: Simplify right side
   1,432.98x = 2,380,066.73
5. Step 5: Solve for x
   x = 2,380,066.73/1,432.98
6. Step 6: Final answer
   x = 1,660.92