Finding the Fourth Proportional to 2,543.58, 3,811.71 and 1,371.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,543.58 : 3,811.71 = 1,371.69 : x
2. Step 2: Convert to fraction form
   2,543.58/3,811.71 = 1,371.69/x
3. Step 3: Cross multiply
   2,543.58x = 3,811.71 × 1,371.69
4. Step 4: Simplify right side
   2,543.58x = 5,228,484.49
5. Step 5: Solve for x
   x = 5,228,484.49/2,543.58
6. Step 6: Final answer
   x = 2,055.56