Finding the Fourth Proportional to 2,343.80, 3,234.72 and 1,349.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,343.80 : 3,234.72 = 1,349.12 : x
2. Step 2: Convert to fraction form
   2,343.80/3,234.72 = 1,349.12/x
3. Step 3: Cross multiply
   2,343.80x = 3,234.72 × 1,349.12
4. Step 4: Simplify right side
   2,343.80x = 4,364,025.45
5. Step 5: Solve for x
   x = 4,364,025.45/2,343.80
6. Step 6: Final answer
   x = 1,861.94