Finding the Fourth Proportional to 2,282.60, 3,150.04 and 1,398.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,282.60 : 3,150.04 = 1,398.88 : x
2. Step 2: Convert to fraction form
   2,282.60/3,150.04 = 1,398.88/x
3. Step 3: Cross multiply
   2,282.60x = 3,150.04 × 1,398.88
4. Step 4: Simplify right side
   2,282.60x = 4,406,527.96
5. Step 5: Solve for x
   x = 4,406,527.96/2,282.60
6. Step 6: Final answer
   x = 1,930.49