Finding the Fourth Proportional to 5,133.85, 7,084.72 and 2,776.00

Step by Step Solution

1. Step 1: Write the proportion equation
   5,133.85 : 7,084.72 = 2,776.00 : x
2. Step 2: Convert to fraction form
   5,133.85/7,084.72 = 2,776.00/x
3. Step 3: Cross multiply
   5,133.85x = 7,084.72 × 2,776.00
4. Step 4: Simplify right side
   5,133.85x = 19,667,147.30
5. Step 5: Solve for x
   x = 19,667,147.30/5,133.85
6. Step 6: Final answer
   x = 3,830.88