Finding the Fourth Proportional to 5,336.66, 7,364.86 and 2,978.76

Step by Step Solution

1. Step 1: Write the proportion equation
   5,336.66 : 7,364.86 = 2,978.76 : x
2. Step 2: Convert to fraction form
   5,336.66/7,364.86 = 2,978.76/x
3. Step 3: Cross multiply
   5,336.66x = 7,364.86 × 2,978.76
4. Step 4: Simplify right side
   5,336.66x = 21,938,150.37
5. Step 5: Solve for x
   x = 21,938,150.37/5,336.66
6. Step 6: Final answer
   x = 4,110.84