Finding the Fourth Proportional to 1,440.47, 1,985.78 and 967.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,440.47 : 1,985.78 = 967.53 : x
2. Step 2: Convert to fraction form
   1,440.47/1,985.78 = 967.53/x
3. Step 3: Cross multiply
   1,440.47x = 1,985.78 × 967.53
4. Step 4: Simplify right side
   1,440.47x = 1,921,301.72
5. Step 5: Solve for x
   x = 1,921,301.72/1,440.47
6. Step 6: Final answer
   x = 1,333.80