Finding the Fourth Proportional to 1,427.22, 1,969.38 and 903.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,427.22 : 1,969.38 = 903.06 : x
2. Step 2: Convert to fraction form
   1,427.22/1,969.38 = 903.06/x
3. Step 3: Cross multiply
   1,427.22x = 1,969.38 × 903.06
4. Step 4: Simplify right side
   1,427.22x = 1,778,468.30
5. Step 5: Solve for x
   x = 1,778,468.30/1,427.22
6. Step 6: Final answer
   x = 1,246.11