Finding the Fourth Proportional to 1,608.24, 2,219.10 and 900.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,608.24 : 2,219.10 = 900.03 : x
2. Step 2: Convert to fraction form
   1,608.24/2,219.10 = 900.03/x
3. Step 3: Cross multiply
   1,608.24x = 2,219.10 × 900.03
4. Step 4: Simplify right side
   1,608.24x = 1,997,256.57
5. Step 5: Solve for x
   x = 1,997,256.57/1,608.24
6. Step 6: Final answer
   x = 1,241.89