Finding the Fourth Proportional to 1,610.37, 2,222.36 and 902.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,610.37 : 2,222.36 = 902.18 : x
2. Step 2: Convert to fraction form
   1,610.37/2,222.36 = 902.18/x
3. Step 3: Cross multiply
   1,610.37x = 2,222.36 × 902.18
4. Step 4: Simplify right side
   1,610.37x = 2,004,953.12
5. Step 5: Solve for x
   x = 2,004,953.12/1,610.37
6. Step 6: Final answer
   x = 1,245.03