Finding the Fourth Proportional to 1,610.56, 2,222.10 and 902.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,610.56 : 2,222.10 = 902.34 : x
2. Step 2: Convert to fraction form
   1,610.56/2,222.10 = 902.34/x
3. Step 3: Cross multiply
   1,610.56x = 2,222.10 × 902.34
4. Step 4: Simplify right side
   1,610.56x = 2,005,089.71
5. Step 5: Solve for x
   x = 2,005,089.71/1,610.56
6. Step 6: Final answer
   x = 1,244.96