Finding the Fourth Proportional to 2,253.20, 3,373.56 and 1,275.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,253.20 : 3,373.56 = 1,275.68 : x
2. Step 2: Convert to fraction form
   2,253.20/3,373.56 = 1,275.68/x
3. Step 3: Cross multiply
   2,253.20x = 3,373.56 × 1,275.68
4. Step 4: Simplify right side
   2,253.20x = 4,303,583.02
5. Step 5: Solve for x
   x = 4,303,583.02/2,253.20
6. Step 6: Final answer
   x = 1,909.99