Finding the Fourth Proportional to 2,978.23, 4,109.82 and 1,719.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.23 : 4,109.82 = 1,719.51 : x
2. Step 2: Convert to fraction form
   2,978.23/4,109.82 = 1,719.51/x
3. Step 3: Cross multiply
   2,978.23x = 4,109.82 × 1,719.51
4. Step 4: Simplify right side
   2,978.23x = 7,066,876.59
5. Step 5: Solve for x
   x = 7,066,876.59/2,978.23
6. Step 6: Final answer
   x = 2,372.84