Finding the Fourth Proportional to 2,641.71, 3,935.23 and 2,553.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,641.71 : 3,935.23 = 2,553.32 : x
2. Step 2: Convert to fraction form
   2,641.71/3,935.23 = 2,553.32/x
3. Step 3: Cross multiply
   2,641.71x = 3,935.23 × 2,553.32
4. Step 4: Simplify right side
   2,641.71x = 10,047,919.28
5. Step 5: Solve for x
   x = 10,047,919.28/2,641.71
6. Step 6: Final answer
   x = 3,803.56