Finding the Fourth Proportional to 1,438.71, 1,985.16 and 967.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,438.71 : 1,985.16 = 967.37 : x
2. Step 2: Convert to fraction form
   1,438.71/1,985.16 = 967.37/x
3. Step 3: Cross multiply
   1,438.71x = 1,985.16 × 967.37
4. Step 4: Simplify right side
   1,438.71x = 1,920,378.07
5. Step 5: Solve for x
   x = 1,920,378.07/1,438.71
6. Step 6: Final answer
   x = 1,334.79