Finding the Fourth Proportional to 2,259.72, 3,388.71 and 906.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,259.72 : 3,388.71 = 906.92 : x
2. Step 2: Convert to fraction form
   2,259.72/3,388.71 = 906.92/x
3. Step 3: Cross multiply
   2,259.72x = 3,388.71 × 906.92
4. Step 4: Simplify right side
   2,259.72x = 3,073,271.93
5. Step 5: Solve for x
   x = 3,073,271.93/2,259.72
6. Step 6: Final answer
   x = 1,360.02