Finding the Fourth Proportional to 1,451.47, 2,178.50 and 956.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,451.47 : 2,178.50 = 956.49 : x
2. Step 2: Convert to fraction form
   1,451.47/2,178.50 = 956.49/x
3. Step 3: Cross multiply
   1,451.47x = 2,178.50 × 956.49
4. Step 4: Simplify right side
   1,451.47x = 2,083,708.17
5. Step 5: Solve for x
   x = 2,083,708.17/1,451.47
6. Step 6: Final answer
   x = 1,435.59