Finding the Fourth Proportional to 3,719.18, 5,131.86 and 2,227.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,719.18 : 5,131.86 = 2,227.16 : x
2. Step 2: Convert to fraction form
   3,719.18/5,131.86 = 2,227.16/x
3. Step 3: Cross multiply
   3,719.18x = 5,131.86 × 2,227.16
4. Step 4: Simplify right side
   3,719.18x = 11,429,473.32
5. Step 5: Solve for x
   x = 11,429,473.32/3,719.18
6. Step 6: Final answer
   x = 3,073.12