Finding the Fourth Proportional to 2,225.32, 3,070.89 and 1,230.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,225.32 : 3,070.89 = 1,230.58 : x
2. Step 2: Convert to fraction form
   2,225.32/3,070.89 = 1,230.58/x
3. Step 3: Cross multiply
   2,225.32x = 3,070.89 × 1,230.58
4. Step 4: Simplify right side
   2,225.32x = 3,778,975.82
5. Step 5: Solve for x
   x = 3,778,975.82/2,225.32
6. Step 6: Final answer
   x = 1,698.17