Finding the Fourth Proportional to 6,978.90, 10,460.12 and 2,813.34

Step by Step Solution

1. Step 1: Write the proportion equation
   6,978.90 : 10,460.12 = 2,813.34 : x
2. Step 2: Convert to fraction form
   6,978.90/10,460.12 = 2,813.34/x
3. Step 3: Cross multiply
   6,978.90x = 10,460.12 × 2,813.34
4. Step 4: Simplify right side
   6,978.90x = 29,427,874.00
5. Step 5: Solve for x
   x = 29,427,874.00/6,978.90
6. Step 6: Final answer
   x = 4,216.69