Finding the Fourth Proportional to 1,967.61, 2,950.32 and 912.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,967.61 : 2,950.32 = 912.27 : x
2. Step 2: Convert to fraction form
   1,967.61/2,950.32 = 912.27/x
3. Step 3: Cross multiply
   1,967.61x = 2,950.32 × 912.27
4. Step 4: Simplify right side
   1,967.61x = 2,691,488.43
5. Step 5: Solve for x
   x = 2,691,488.43/1,967.61
6. Step 6: Final answer
   x = 1,367.90