Finding the Fourth Proportional to 2,426.52, 3,640.56 and 1,128.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,426.52 : 3,640.56 = 1,128.84 : x
2. Step 2: Convert to fraction form
   2,426.52/3,640.56 = 1,128.84/x
3. Step 3: Cross multiply
   2,426.52x = 3,640.56 × 1,128.84
4. Step 4: Simplify right side
   2,426.52x = 4,109,609.75
5. Step 5: Solve for x
   x = 4,109,609.75/2,426.52
6. Step 6: Final answer
   x = 1,693.62