Finding the Fourth Proportional to 2,284.38, 3,152.42 and 1,289.65

Step by Step Solution

1. Step 1: Write the proportion equation
   2,284.38 : 3,152.42 = 1,289.65 : x
2. Step 2: Convert to fraction form
   2,284.38/3,152.42 = 1,289.65/x
3. Step 3: Cross multiply
   2,284.38x = 3,152.42 × 1,289.65
4. Step 4: Simplify right side
   2,284.38x = 4,065,506.00
5. Step 5: Solve for x
   x = 4,065,506.00/2,284.38
6. Step 6: Final answer
   x = 1,779.70