Finding the Fourth Proportional to 2,951.71, 4,429.01 and 1,856.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,951.71 : 4,429.01 = 1,856.59 : x
2. Step 2: Convert to fraction form
   2,951.71/4,429.01 = 1,856.59/x
3. Step 3: Cross multiply
   2,951.71x = 4,429.01 × 1,856.59
4. Step 4: Simplify right side
   2,951.71x = 8,222,855.68
5. Step 5: Solve for x
   x = 8,222,855.68/2,951.71
6. Step 6: Final answer
   x = 2,785.79