Finding the Fourth Proportional to 3,688.90, 5,092.41 and 2,641.54

Step by Step Solution

1. Step 1: Write the proportion equation
   3,688.90 : 5,092.41 = 2,641.54 : x
2. Step 2: Convert to fraction form
   3,688.90/5,092.41 = 2,641.54/x
3. Step 3: Cross multiply
   3,688.90x = 5,092.41 × 2,641.54
4. Step 4: Simplify right side
   3,688.90x = 13,451,804.71
5. Step 5: Solve for x
   x = 13,451,804.71/3,688.90
6. Step 6: Final answer
   x = 3,646.56