Finding the Fourth Proportional to 5,778.57, 8,667.50 and 1,618.49

Step by Step Solution

1. Step 1: Write the proportion equation
   5,778.57 : 8,667.50 = 1,618.49 : x
2. Step 2: Convert to fraction form
   5,778.57/8,667.50 = 1,618.49/x
3. Step 3: Cross multiply
   5,778.57x = 8,667.50 × 1,618.49
4. Step 4: Simplify right side
   5,778.57x = 14,028,210.65
5. Step 5: Solve for x
   x = 14,028,210.65/5,778.57
6. Step 6: Final answer
   x = 2,427.63