Finding the Fourth Proportional to 2,069.31, 2,856.06 and 1,185.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,069.31 : 2,856.06 = 1,185.71 : x
2. Step 2: Convert to fraction form
   2,069.31/2,856.06 = 1,185.71/x
3. Step 3: Cross multiply
   2,069.31x = 2,856.06 × 1,185.71
4. Step 4: Simplify right side
   2,069.31x = 3,386,444.62
5. Step 5: Solve for x
   x = 3,386,444.62/2,069.31
6. Step 6: Final answer
   x = 1,636.51