Finding the Fourth Proportional to 2,664.04, 3,993.06 and 1,275.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,664.04 : 3,993.06 = 1,275.46 : x
2. Step 2: Convert to fraction form
   2,664.04/3,993.06 = 1,275.46/x
3. Step 3: Cross multiply
   2,664.04x = 3,993.06 × 1,275.46
4. Step 4: Simplify right side
   2,664.04x = 5,092,988.31
5. Step 5: Solve for x
   x = 5,092,988.31/2,664.04
6. Step 6: Final answer
   x = 1,911.75