Finding the Fourth Proportional to 3,704.31, 5,107.86 and 2,641.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,704.31 : 5,107.86 = 2,641.59 : x
2. Step 2: Convert to fraction form
   3,704.31/5,107.86 = 2,641.59/x
3. Step 3: Cross multiply
   3,704.31x = 5,107.86 × 2,641.59
4. Step 4: Simplify right side
   3,704.31x = 13,492,871.90
5. Step 5: Solve for x
   x = 13,492,871.90/3,704.31
6. Step 6: Final answer
   x = 3,642.48