Finding the Fourth Proportional to 1,630.50, 2,250.09 and 931.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,630.50 : 2,250.09 = 931.89 : x
2. Step 2: Convert to fraction form
   1,630.50/2,250.09 = 931.89/x
3. Step 3: Cross multiply
   1,630.50x = 2,250.09 × 931.89
4. Step 4: Simplify right side
   1,630.50x = 2,096,836.37
5. Step 5: Solve for x
   x = 2,096,836.37/1,630.50
6. Step 6: Final answer
   x = 1,286.01