Finding the Fourth Proportional to 2,089.40, 3,138.90 and 1,474.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,089.40 : 3,138.90 = 1,474.52 : x
2. Step 2: Convert to fraction form
   2,089.40/3,138.90 = 1,474.52/x
3. Step 3: Cross multiply
   2,089.40x = 3,138.90 × 1,474.52
4. Step 4: Simplify right side
   2,089.40x = 4,628,370.83
5. Step 5: Solve for x
   x = 4,628,370.83/2,089.40
6. Step 6: Final answer
   x = 2,215.17