Finding the Fourth Proportional to 2,591.71, 3,576.59 and 1,543.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,591.71 : 3,576.59 = 1,543.57 : x
2. Step 2: Convert to fraction form
   2,591.71/3,576.59 = 1,543.57/x
3. Step 3: Cross multiply
   2,591.71x = 3,576.59 × 1,543.57
4. Step 4: Simplify right side
   2,591.71x = 5,520,717.03
5. Step 5: Solve for x
   x = 5,520,717.03/2,591.71
6. Step 6: Final answer
   x = 2,130.14