Finding the Fourth Proportional to 2,359.70, 3,256.29 and 1,311.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,359.70 : 3,256.29 = 1,311.83 : x
2. Step 2: Convert to fraction form
   2,359.70/3,256.29 = 1,311.83/x
3. Step 3: Cross multiply
   2,359.70x = 3,256.29 × 1,311.83
4. Step 4: Simplify right side
   2,359.70x = 4,271,682.63
5. Step 5: Solve for x
   x = 4,271,682.63/2,359.70
6. Step 6: Final answer
   x = 1,810.27