Finding the Fourth Proportional to 3,606.18, 5,411.43 and 1,297.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,606.18 : 5,411.43 = 1,297.86 : x
2. Step 2: Convert to fraction form
   3,606.18/5,411.43 = 1,297.86/x
3. Step 3: Cross multiply
   3,606.18x = 5,411.43 × 1,297.86
4. Step 4: Simplify right side
   3,606.18x = 7,023,278.54
5. Step 5: Solve for x
   x = 7,023,278.54/3,606.18
6. Step 6: Final answer
   x = 1,947.57