Finding the Fourth Proportional to 2,162.58, 2,981.25 and 1,540.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162.58 : 2,981.25 = 1,540.50 : x
2. Step 2: Convert to fraction form
   2,162.58/2,981.25 = 1,540.50/x
3. Step 3: Cross multiply
   2,162.58x = 2,981.25 × 1,540.50
4. Step 4: Simplify right side
   2,162.58x = 4,592,615.63
5. Step 5: Solve for x
   x = 4,592,615.63/2,162.58
6. Step 6: Final answer
   x = 2,123.67