Finding the Fourth Proportional to 2,978.84, 4,110.96 and 1,719.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.84 : 4,110.96 = 1,719.92 : x
2. Step 2: Convert to fraction form
   2,978.84/4,110.96 = 1,719.92/x
3. Step 3: Cross multiply
   2,978.84x = 4,110.96 × 1,719.92
4. Step 4: Simplify right side
   2,978.84x = 7,070,522.32
5. Step 5: Solve for x
   x = 7,070,522.32/2,978.84
6. Step 6: Final answer
   x = 2,373.58