Finding the Fourth Proportional to 2,225.43, 3,071.03 and 1,230.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,225.43 : 3,071.03 = 1,230.71 : x
2. Step 2: Convert to fraction form
   2,225.43/3,071.03 = 1,230.71/x
3. Step 3: Cross multiply
   2,225.43x = 3,071.03 × 1,230.71
4. Step 4: Simplify right side
   2,225.43x = 3,779,525.82
5. Step 5: Solve for x
   x = 3,779,525.82/2,225.43
6. Step 6: Final answer
   x = 1,698.34