Finding the Fourth Proportional to 2,065.28, 3,092.09 and 1,870.65

Step by Step Solution

1. Step 1: Write the proportion equation
   2,065.28 : 3,092.09 = 1,870.65 : x
2. Step 2: Convert to fraction form
   2,065.28/3,092.09 = 1,870.65/x
3. Step 3: Cross multiply
   2,065.28x = 3,092.09 × 1,870.65
4. Step 4: Simplify right side
   2,065.28x = 5,784,208.81
5. Step 5: Solve for x
   x = 5,784,208.81/2,065.28
6. Step 6: Final answer
   x = 2,800.70