Finding the Fourth Proportional to 1,724.81, 2,585.39 and 1,175.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,724.81 : 2,585.39 = 1,175.63 : x
2. Step 2: Convert to fraction form
   1,724.81/2,585.39 = 1,175.63/x
3. Step 3: Cross multiply
   1,724.81x = 2,585.39 × 1,175.63
4. Step 4: Simplify right side
   1,724.81x = 3,039,443.24
5. Step 5: Solve for x
   x = 3,039,443.24/1,724.81
6. Step 6: Final answer
   x = 1,762.20