Finding the Fourth Proportional to 2,970.64, 4,456.47 and 1,327.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,970.64 : 4,456.47 = 1,327.15 : x
2. Step 2: Convert to fraction form
   2,970.64/4,456.47 = 1,327.15/x
3. Step 3: Cross multiply
   2,970.64x = 4,456.47 × 1,327.15
4. Step 4: Simplify right side
   2,970.64x = 5,914,404.16
5. Step 5: Solve for x
   x = 5,914,404.16/2,970.64
6. Step 6: Final answer
   x = 1,990.95