Finding the Fourth Proportional to 2,225.27, 3,070.74 and 1,230.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,225.27 : 3,070.74 = 1,230.49 : x
2. Step 2: Convert to fraction form
   2,225.27/3,070.74 = 1,230.49/x
3. Step 3: Cross multiply
   2,225.27x = 3,070.74 × 1,230.49
4. Step 4: Simplify right side
   2,225.27x = 3,778,523.32
5. Step 5: Solve for x
   x = 3,778,523.32/2,225.27
6. Step 6: Final answer
   x = 1,698.00