Finding the Fourth Proportional to 1,739.69, 2,606.39 and 1,153.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,739.69 : 2,606.39 = 1,153.30 : x
2. Step 2: Convert to fraction form
   1,739.69/2,606.39 = 1,153.30/x
3. Step 3: Cross multiply
   1,739.69x = 2,606.39 × 1,153.30
4. Step 4: Simplify right side
   1,739.69x = 3,005,955.73
5. Step 5: Solve for x
   x = 3,005,955.73/1,739.69
6. Step 6: Final answer
   x = 1,727.87