Finding the Fourth Proportional to 1,730.34, 2,387.79 and 1,031.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,730.34 : 2,387.79 = 1,031.58 : x
2. Step 2: Convert to fraction form
   1,730.34/2,387.79 = 1,031.58/x
3. Step 3: Cross multiply
   1,730.34x = 2,387.79 × 1,031.58
4. Step 4: Simplify right side
   1,730.34x = 2,463,196.41
5. Step 5: Solve for x
   x = 2,463,196.41/1,730.34
6. Step 6: Final answer
   x = 1,423.53