Finding the Fourth Proportional to 2,856.57, 4,288.82 and 1,470.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,856.57 : 4,288.82 = 1,470.89 : x
2. Step 2: Convert to fraction form
   2,856.57/4,288.82 = 1,470.89/x
3. Step 3: Cross multiply
   2,856.57x = 4,288.82 × 1,470.89
4. Step 4: Simplify right side
   2,856.57x = 6,308,385.82
5. Step 5: Solve for x
   x = 6,308,385.82/2,856.57
6. Step 6: Final answer
   x = 2,208.38