Finding the Fourth Proportional to 2,945.52, 4,420.30 and 1,214.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,945.52 : 4,420.30 = 1,214.15 : x
2. Step 2: Convert to fraction form
   2,945.52/4,420.30 = 1,214.15/x
3. Step 3: Cross multiply
   2,945.52x = 4,420.30 × 1,214.15
4. Step 4: Simplify right side
   2,945.52x = 5,366,885.14
5. Step 5: Solve for x
   x = 5,366,885.14/2,945.52
6. Step 6: Final answer
   x = 1,822.05