Finding the Fourth Proportional to 2,284.35, 3,152.57 and 1,289.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,284.35 : 3,152.57 = 1,289.81 : x
2. Step 2: Convert to fraction form
   2,284.35/3,152.57 = 1,289.81/x
3. Step 3: Cross multiply
   2,284.35x = 3,152.57 × 1,289.81
4. Step 4: Simplify right side
   2,284.35x = 4,066,194.10
5. Step 5: Solve for x
   x = 4,066,194.10/2,284.35
6. Step 6: Final answer
   x = 1,780.02