Finding the Fourth Proportional to 2,978.10, 4,109.51 and 1,651.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.10 : 4,109.51 = 1,651.46 : x
2. Step 2: Convert to fraction form
   2,978.10/4,109.51 = 1,651.46/x
3. Step 3: Cross multiply
   2,978.10x = 4,109.51 × 1,651.46
4. Step 4: Simplify right side
   2,978.10x = 6,786,662.58
5. Step 5: Solve for x
   x = 6,786,662.58/2,978.10
6. Step 6: Final answer
   x = 2,278.86