Finding the Fourth Proportional to 3,561.57, 5,340.38 and 1,095.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,561.57 : 5,340.38 = 1,095.71 : x
2. Step 2: Convert to fraction form
   3,561.57/5,340.38 = 1,095.71/x
3. Step 3: Cross multiply
   3,561.57x = 5,340.38 × 1,095.71
4. Step 4: Simplify right side
   3,561.57x = 5,851,475.59
5. Step 5: Solve for x
   x = 5,851,475.59/3,561.57
6. Step 6: Final answer
   x = 1,642.95