Finding the Fourth Proportional to 3,641.34, 5,031.64 and 2,591.58

Step by Step Solution

1. Step 1: Write the proportion equation
   3,641.34 : 5,031.64 = 2,591.58 : x
2. Step 2: Convert to fraction form
   3,641.34/5,031.64 = 2,591.58/x
3. Step 3: Cross multiply
   3,641.34x = 5,031.64 × 2,591.58
4. Step 4: Simplify right side
   3,641.34x = 13,039,897.59
5. Step 5: Solve for x
   x = 13,039,897.59/3,641.34
6. Step 6: Final answer
   x = 3,581.07