Finding the Fourth Proportional to 2,290.06, 3,434.28 and 903.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,290.06 : 3,434.28 = 903.34 : x
2. Step 2: Convert to fraction form
   2,290.06/3,434.28 = 903.34/x
3. Step 3: Cross multiply
   2,290.06x = 3,434.28 × 903.34
4. Step 4: Simplify right side
   2,290.06x = 3,102,322.50
5. Step 5: Solve for x
   x = 3,102,322.50/2,290.06
6. Step 6: Final answer
   x = 1,354.69