Finding the Fourth Proportional to 1,630.59, 2,250.17 and 931.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,630.59 : 2,250.17 = 931.96 : x
2. Step 2: Convert to fraction form
   1,630.59/2,250.17 = 931.96/x
3. Step 3: Cross multiply
   1,630.59x = 2,250.17 × 931.96
4. Step 4: Simplify right side
   1,630.59x = 2,097,063.77
5. Step 5: Solve for x
   x = 2,097,063.77/1,630.59
6. Step 6: Final answer
   x = 1,286.08