Finding the Fourth Proportional to 1,447.95, 1,997.55 and 976.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,447.95 : 1,997.55 = 976.15 : x
2. Step 2: Convert to fraction form
   1,447.95/1,997.55 = 976.15/x
3. Step 3: Cross multiply
   1,447.95x = 1,997.55 × 976.15
4. Step 4: Simplify right side
   1,447.95x = 1,949,908.43
5. Step 5: Solve for x
   x = 1,949,908.43/1,447.95
6. Step 6: Final answer
   x = 1,346.67