Finding the Fourth Proportional to 4,926.52, 7,388.15 and 1,638.73

Step by Step Solution

1. Step 1: Write the proportion equation
   4,926.52 : 7,388.15 = 1,638.73 : x
2. Step 2: Convert to fraction form
   4,926.52/7,388.15 = 1,638.73/x
3. Step 3: Cross multiply
   4,926.52x = 7,388.15 × 1,638.73
4. Step 4: Simplify right side
   4,926.52x = 12,107,146.11
5. Step 5: Solve for x
   x = 12,107,146.11/4,926.52
6. Step 6: Final answer
   x = 2,457.55