Finding the Fourth Proportional to 5,164.32, 7,126.72 and 2,806.46

Step by Step Solution

1. Step 1: Write the proportion equation
   5,164.32 : 7,126.72 = 2,806.46 : x
2. Step 2: Convert to fraction form
   5,164.32/7,126.72 = 2,806.46/x
3. Step 3: Cross multiply
   5,164.32x = 7,126.72 × 2,806.46
4. Step 4: Simplify right side
   5,164.32x = 20,000,830.48
5. Step 5: Solve for x
   x = 20,000,830.48/5,164.32
6. Step 6: Final answer
   x = 3,872.89