Finding the Fourth Proportional to 2,971.52, 4,457.31 and 1,328.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,971.52 : 4,457.31 = 1,328.15 : x
2. Step 2: Convert to fraction form
   2,971.52/4,457.31 = 1,328.15/x
3. Step 3: Cross multiply
   2,971.52x = 4,457.31 × 1,328.15
4. Step 4: Simplify right side
   2,971.52x = 5,919,976.28
5. Step 5: Solve for x
   x = 5,919,976.28/2,971.52
6. Step 6: Final answer
   x = 1,992.24