Finding the Fourth Proportional to 1,767.20, 2,436.72 and 1,268.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,767.20 : 2,436.72 = 1,268.24 : x
2. Step 2: Convert to fraction form
   1,767.20/2,436.72 = 1,268.24/x
3. Step 3: Cross multiply
   1,767.20x = 2,436.72 × 1,268.24
4. Step 4: Simplify right side
   1,767.20x = 3,090,345.77
5. Step 5: Solve for x
   x = 3,090,345.77/1,767.20
6. Step 6: Final answer
   x = 1,748.72