Finding the Fourth Proportional to 2,118.52, 2,924.57 and 1,489.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,118.52 : 2,924.57 = 1,489.58 : x
2. Step 2: Convert to fraction form
   2,118.52/2,924.57 = 1,489.58/x
3. Step 3: Cross multiply
   2,118.52x = 2,924.57 × 1,489.58
4. Step 4: Simplify right side
   2,118.52x = 4,356,372.67
5. Step 5: Solve for x
   x = 4,356,372.67/2,118.52
6. Step 6: Final answer
   x = 2,056.33