Finding the Fourth Proportional to 2,359.02, 3,255.32 and 1,311.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,359.02 : 3,255.32 = 1,311.06 : x
2. Step 2: Convert to fraction form
   2,359.02/3,255.32 = 1,311.06/x
3. Step 3: Cross multiply
   2,359.02x = 3,255.32 × 1,311.06
4. Step 4: Simplify right side
   2,359.02x = 4,267,919.84
5. Step 5: Solve for x
   x = 4,267,919.84/2,359.02
6. Step 6: Final answer
   x = 1,809.19