Finding the Fourth Proportional to 2,359.87, 3,256.40 and 1,297.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,359.87 : 3,256.40 = 1,297.42 : x
2. Step 2: Convert to fraction form
   2,359.87/3,256.40 = 1,297.42/x
3. Step 3: Cross multiply
   2,359.87x = 3,256.40 × 1,297.42
4. Step 4: Simplify right side
   2,359.87x = 4,224,913.59
5. Step 5: Solve for x
   x = 4,224,913.59/2,359.87
6. Step 6: Final answer
   x = 1,790.32