Finding the Fourth Proportional to 2,287.71, 3,156.64 and 1,343.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,287.71 : 3,156.64 = 1,343.59 : x
2. Step 2: Convert to fraction form
   2,287.71/3,156.64 = 1,343.59/x
3. Step 3: Cross multiply
   2,287.71x = 3,156.64 × 1,343.59
4. Step 4: Simplify right side
   2,287.71x = 4,241,218.69
5. Step 5: Solve for x
   x = 4,241,218.69/2,287.71
6. Step 6: Final answer
   x = 1,853.91