Finding the Fourth Proportional to 4,915.50, 7,372.50 and 1,628.19

Step by Step Solution

1. Step 1: Write the proportion equation
   4,915.50 : 7,372.50 = 1,628.19 : x
2. Step 2: Convert to fraction form
   4,915.50/7,372.50 = 1,628.19/x
3. Step 3: Cross multiply
   4,915.50x = 7,372.50 × 1,628.19
4. Step 4: Simplify right side
   4,915.50x = 12,003,830.78
5. Step 5: Solve for x
   x = 12,003,830.78/4,915.50
6. Step 6: Final answer
   x = 2,442.04