Finding the Fourth Proportional to 2,360.52, 3,540.72 and 1,128.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,360.52 : 3,540.72 = 1,128.80 : x
2. Step 2: Convert to fraction form
   2,360.52/3,540.72 = 1,128.80/x
3. Step 3: Cross multiply
   2,360.52x = 3,540.72 × 1,128.80
4. Step 4: Simplify right side
   2,360.52x = 3,996,764.74
5. Step 5: Solve for x
   x = 3,996,764.74/2,360.52
6. Step 6: Final answer
   x = 1,693.17