Finding the Fourth Proportional to 3,690.78, 5,093.18 and 2,012.26

Step by Step Solution

1. Step 1: Write the proportion equation
   3,690.78 : 5,093.18 = 2,012.26 : x
2. Step 2: Convert to fraction form
   3,690.78/5,093.18 = 2,012.26/x
3. Step 3: Cross multiply
   3,690.78x = 5,093.18 × 2,012.26
4. Step 4: Simplify right side
   3,690.78x = 10,248,796.69
5. Step 5: Solve for x
   x = 10,248,796.69/3,690.78
6. Step 6: Final answer
   x = 2,776.86