Finding the Fourth Proportional to 2,375.56, 3,564.87 and 1,280.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,375.56 : 3,564.87 = 1,280.69 : x
2. Step 2: Convert to fraction form
   2,375.56/3,564.87 = 1,280.69/x
3. Step 3: Cross multiply
   2,375.56x = 3,564.87 × 1,280.69
4. Step 4: Simplify right side
   2,375.56x = 4,565,475.54
5. Step 5: Solve for x
   x = 4,565,475.54/2,375.56
6. Step 6: Final answer
   x = 1,921.85