Finding the Fourth Proportional to 2,266.30, 3,128.79 and 1,559.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,266.30 : 3,128.79 = 1,559.17 : x
2. Step 2: Convert to fraction form
   2,266.30/3,128.79 = 1,559.17/x
3. Step 3: Cross multiply
   2,266.30x = 3,128.79 × 1,559.17
4. Step 4: Simplify right side
   2,266.30x = 4,878,315.50
5. Step 5: Solve for x
   x = 4,878,315.50/2,266.30
6. Step 6: Final answer
   x = 2,152.55