Finding the Fourth Proportional to 1,343.46, 1,853.22 and 1,240.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,343.46 : 1,853.22 = 1,240.38 : x
2. Step 2: Convert to fraction form
   1,343.46/1,853.22 = 1,240.38/x
3. Step 3: Cross multiply
   1,343.46x = 1,853.22 × 1,240.38
4. Step 4: Simplify right side
   1,343.46x = 2,298,697.02
5. Step 5: Solve for x
   x = 2,298,697.02/1,343.46
6. Step 6: Final answer
   x = 1,711.03