Finding the Fourth Proportional to 1,729.50, 2,387.79 and 1,109.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,729.50 : 2,387.79 = 1,109.58 : x
2. Step 2: Convert to fraction form
   1,729.50/2,387.79 = 1,109.58/x
3. Step 3: Cross multiply
   1,729.50x = 2,387.79 × 1,109.58
4. Step 4: Simplify right side
   1,729.50x = 2,649,444.03
5. Step 5: Solve for x
   x = 2,649,444.03/1,729.50
6. Step 6: Final answer
   x = 1,531.91