Finding the Fourth Proportional to 1,323.47, 1,826.55 and 903.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,323.47 : 1,826.55 = 903.69 : x
2. Step 2: Convert to fraction form
   1,323.47/1,826.55 = 903.69/x
3. Step 3: Cross multiply
   1,323.47x = 1,826.55 × 903.69
4. Step 4: Simplify right side
   1,323.47x = 1,650,634.97
5. Step 5: Solve for x
   x = 1,650,634.97/1,323.47
6. Step 6: Final answer
   x = 1,247.20