Finding the Fourth Proportional to 2,343.56, 3,234.04 and 1,399.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,343.56 : 3,234.04 = 1,399.76 : x
2. Step 2: Convert to fraction form
   2,343.56/3,234.04 = 1,399.76/x
3. Step 3: Cross multiply
   2,343.56x = 3,234.04 × 1,399.76
4. Step 4: Simplify right side
   2,343.56x = 4,526,879.83
5. Step 5: Solve for x
   x = 4,526,879.83/2,343.56
6. Step 6: Final answer
   x = 1,931.63