Finding the Fourth Proportional to 2,978.28, 4,110.28 and 1,719.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.28 : 4,110.28 = 1,719.77 : x
2. Step 2: Convert to fraction form
   2,978.28/4,110.28 = 1,719.77/x
3. Step 3: Cross multiply
   2,978.28x = 4,110.28 × 1,719.77
4. Step 4: Simplify right side
   2,978.28x = 7,068,736.24
5. Step 5: Solve for x
   x = 7,068,736.24/2,978.28
6. Step 6: Final answer
   x = 2,373.43