Finding the Fourth Proportional to 2,978.72, 4,465.17 and 1,418.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.72 : 4,465.17 = 1,418.30 : x
2. Step 2: Convert to fraction form
   2,978.72/4,465.17 = 1,418.30/x
3. Step 3: Cross multiply
   2,978.72x = 4,465.17 × 1,418.30
4. Step 4: Simplify right side
   2,978.72x = 6,332,970.50
5. Step 5: Solve for x
   x = 6,332,970.50/2,978.72
6. Step 6: Final answer
   x = 2,126.07