Finding the Fourth Proportional to 2,225.82, 3,071.62 and 1,231.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,225.82 : 3,071.62 = 1,231.07 : x
2. Step 2: Convert to fraction form
   2,225.82/3,071.62 = 1,231.07/x
3. Step 3: Cross multiply
   2,225.82x = 3,071.62 × 1,231.07
4. Step 4: Simplify right side
   2,225.82x = 3,781,365.41
5. Step 5: Solve for x
   x = 3,781,365.41/2,225.82
6. Step 6: Final answer
   x = 1,698.86