Finding the Fourth Proportional to 2,978.01, 4,109.04 and 1,719.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.01 : 4,109.04 = 1,719.05 : x
2. Step 2: Convert to fraction form
   2,978.01/4,109.04 = 1,719.05/x
3. Step 3: Cross multiply
   2,978.01x = 4,109.04 × 1,719.05
4. Step 4: Simplify right side
   2,978.01x = 7,063,624.67
5. Step 5: Solve for x
   x = 7,063,624.67/2,978.01
6. Step 6: Final answer
   x = 2,371.93