Finding the Fourth Proportional to 2,263.08, 3,122.78 and 1,268.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,263.08 : 3,122.78 = 1,268.15 : x
2. Step 2: Convert to fraction form
   2,263.08/3,122.78 = 1,268.15/x
3. Step 3: Cross multiply
   2,263.08x = 3,122.78 × 1,268.15
4. Step 4: Simplify right side
   2,263.08x = 3,960,131.50
5. Step 5: Solve for x
   x = 3,960,131.50/2,263.08
6. Step 6: Final answer
   x = 1,749.89