Finding the Fourth Proportional to 2,978.50, 4,110.54 and 1,719.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.50 : 4,110.54 = 1,719.94 : x
2. Step 2: Convert to fraction form
   2,978.50/4,110.54 = 1,719.94/x
3. Step 3: Cross multiply
   2,978.50x = 4,110.54 × 1,719.94
4. Step 4: Simplify right side
   2,978.50x = 7,069,882.17
5. Step 5: Solve for x
   x = 7,069,882.17/2,978.50
6. Step 6: Final answer
   x = 2,373.64