Finding the Fourth Proportional to 2,764.72, 3,812.79 and 2,058.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,764.72 : 3,812.79 = 2,058.35 : x
2. Step 2: Convert to fraction form
   2,764.72/3,812.79 = 2,058.35/x
3. Step 3: Cross multiply
   2,764.72x = 3,812.79 × 2,058.35
4. Step 4: Simplify right side
   2,764.72x = 7,848,066.40
5. Step 5: Solve for x
   x = 7,848,066.40/2,764.72
6. Step 6: Final answer
   x = 2,838.65