Finding the Fourth Proportional to 1,159.24, 1,724.46 and 1,147.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,159.24 : 1,724.46 = 1,147.50 : x
2. Step 2: Convert to fraction form
   1,159.24/1,724.46 = 1,147.50/x
3. Step 3: Cross multiply
   1,159.24x = 1,724.46 × 1,147.50
4. Step 4: Simplify right side
   1,159.24x = 1,978,817.85
5. Step 5: Solve for x
   x = 1,978,817.85/1,159.24
6. Step 6: Final answer
   x = 1,707.00