Finding the Fourth Proportional to 2,978.34, 4,466.60 and 2,059.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.34 : 4,466.60 = 2,059.80 : x
2. Step 2: Convert to fraction form
   2,978.34/4,466.60 = 2,059.80/x
3. Step 3: Cross multiply
   2,978.34x = 4,466.60 × 2,059.80
4. Step 4: Simplify right side
   2,978.34x = 9,200,292.38
5. Step 5: Solve for x
   x = 9,200,292.38/2,978.34
6. Step 6: Final answer
   x = 3,089.07