Finding the Fourth Proportional to 1,826.88, 2,520.96 and 1,128

Step by Step Solution

1. Step 1: Write the proportion equation
   1,826.88 : 2,520.96 = 1,128 : x
2. Step 2: Convert to fraction form
   1,826.88/2,520.96 = 1,128/x
3. Step 3: Cross multiply
   1,826.88x = 2,520.96 × 1,128
4. Step 4: Simplify right side
   1,826.88x = 2,843,642.88
5. Step 5: Solve for x
   x = 2,843,642.88/1,826.88
6. Step 6: Final answer
   x = 1,556.56