Finding the Fourth Proportional to 1,450.76, 2,002.62 and 978.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,450.76 : 2,002.62 = 978.94 : x
2. Step 2: Convert to fraction form
   1,450.76/2,002.62 = 978.94/x
3. Step 3: Cross multiply
   1,450.76x = 2,002.62 × 978.94
4. Step 4: Simplify right side
   1,450.76x = 1,960,443.49
5. Step 5: Solve for x
   x = 1,960,443.49/1,450.76
6. Step 6: Final answer
   x = 1,351.32