Finding the Fourth Proportional to 2,259.01, 3,117.55 and 1,264.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,259.01 : 3,117.55 = 1,264.28 : x
2. Step 2: Convert to fraction form
   2,259.01/3,117.55 = 1,264.28/x
3. Step 3: Cross multiply
   2,259.01x = 3,117.55 × 1,264.28
4. Step 4: Simplify right side
   2,259.01x = 3,941,456.11
5. Step 5: Solve for x
   x = 3,941,456.11/2,259.01
6. Step 6: Final answer
   x = 1,744.77