Finding the Fourth Proportional to 5,196.96, 7,796.88 and 2,077.20

Step by Step Solution

1. Step 1: Write the proportion equation
   5,196.96 : 7,796.88 = 2,077.20 : x
2. Step 2: Convert to fraction form
   5,196.96/7,796.88 = 2,077.20/x
3. Step 3: Cross multiply
   5,196.96x = 7,796.88 × 2,077.20
4. Step 4: Simplify right side
   5,196.96x = 16,195,679.14
5. Step 5: Solve for x
   x = 16,195,679.14/5,196.96
6. Step 6: Final answer
   x = 3,116.38