Finding the Fourth Proportional to 2,970.14, 4,456.71 and 1,216.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,970.14 : 4,456.71 = 1,216.43 : x
2. Step 2: Convert to fraction form
   2,970.14/4,456.71 = 1,216.43/x
3. Step 3: Cross multiply
   2,970.14x = 4,456.71 × 1,216.43
4. Step 4: Simplify right side
   2,970.14x = 5,421,253.46
5. Step 5: Solve for x
   x = 5,421,253.46/2,970.14
6. Step 6: Final answer
   x = 1,825.25