Finding the Fourth Proportional to 2,259.84, 3,118.72 and 1,328

Step by Step Solution

1. Step 1: Write the proportion equation
   2,259.84 : 3,118.72 = 1,328 : x
2. Step 2: Convert to fraction form
   2,259.84/3,118.72 = 1,328/x
3. Step 3: Cross multiply
   2,259.84x = 3,118.72 × 1,328
4. Step 4: Simplify right side
   2,259.84x = 4,141,660.16
5. Step 5: Solve for x
   x = 4,141,660.16/2,259.84
6. Step 6: Final answer
   x = 1,832.72