Finding the Fourth Proportional to 2,263.12, 3,123.15 and 1,268.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,263.12 : 3,123.15 = 1,268.50 : x
2. Step 2: Convert to fraction form
   2,263.12/3,123.15 = 1,268.50/x
3. Step 3: Cross multiply
   2,263.12x = 3,123.15 × 1,268.50
4. Step 4: Simplify right side
   2,263.12x = 3,961,715.78
5. Step 5: Solve for x
   x = 3,961,715.78/2,263.12
6. Step 6: Final answer
   x = 1,750.55