Finding the Fourth Proportional to 5,214.56, 7,196.61 and 2,976.77

Step by Step Solution

1. Step 1: Write the proportion equation
   5,214.56 : 7,196.61 = 2,976.77 : x
2. Step 2: Convert to fraction form
   5,214.56/7,196.61 = 2,976.77/x
3. Step 3: Cross multiply
   5,214.56x = 7,196.61 × 2,976.77
4. Step 4: Simplify right side
   5,214.56x = 21,422,670.74
5. Step 5: Solve for x
   x = 21,422,670.74/5,214.56
6. Step 6: Final answer
   x = 4,108.24