Finding the Fourth Proportional to 2,259.25, 3,112.18 and 1,928.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,259.25 : 3,112.18 = 1,928.77 : x
2. Step 2: Convert to fraction form
   2,259.25/3,112.18 = 1,928.77/x
3. Step 3: Cross multiply
   2,259.25x = 3,112.18 × 1,928.77
4. Step 4: Simplify right side
   2,259.25x = 6,002,666.82
5. Step 5: Solve for x
   x = 6,002,666.82/2,259.25
6. Step 6: Final answer
   x = 2,656.93