Finding the Fourth Proportional to 2,225.34, 3,070.20 and 1,439.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,225.34 : 3,070.20 = 1,439.82 : x
2. Step 2: Convert to fraction form
   2,225.34/3,070.20 = 1,439.82/x
3. Step 3: Cross multiply
   2,225.34x = 3,070.20 × 1,439.82
4. Step 4: Simplify right side
   2,225.34x = 4,420,535.36
5. Step 5: Solve for x
   x = 4,420,535.36/2,225.34
6. Step 6: Final answer
   x = 1,986.45