Finding the Fourth Proportional to 1,730.48, 2,388.23 and 1,022.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,730.48 : 2,388.23 = 1,022.55 : x
2. Step 2: Convert to fraction form
   1,730.48/2,388.23 = 1,022.55/x
3. Step 3: Cross multiply
   1,730.48x = 2,388.23 × 1,022.55
4. Step 4: Simplify right side
   1,730.48x = 2,442,080.10
5. Step 5: Solve for x
   x = 2,442,080.10/1,730.48
6. Step 6: Final answer
   x = 1,411.22