Finding the Fourth Proportional to 2,359.59, 3,256.79 and 1,731.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,359.59 : 3,256.79 = 1,731.03 : x
2. Step 2: Convert to fraction form
   2,359.59/3,256.79 = 1,731.03/x
3. Step 3: Cross multiply
   2,359.59x = 3,256.79 × 1,731.03
4. Step 4: Simplify right side
   2,359.59x = 5,637,592.54
5. Step 5: Solve for x
   x = 5,637,592.54/2,359.59
6. Step 6: Final answer
   x = 2,389.23