Finding the Fourth Proportional to 2,978.11, 4,109.82 and 1,651.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.11 : 4,109.82 = 1,651.79 : x
2. Step 2: Convert to fraction form
   2,978.11/4,109.82 = 1,651.79/x
3. Step 3: Cross multiply
   2,978.11x = 4,109.82 × 1,651.79
4. Step 4: Simplify right side
   2,978.11x = 6,788,539.03
5. Step 5: Solve for x
   x = 6,788,539.03/2,978.11
6. Step 6: Final answer
   x = 2,279.48