Finding the Fourth Proportional to 5,092.50, 7,638.30 and 1,395.12

Step by Step Solution

1. Step 1: Write the proportion equation
   5,092.50 : 7,638.30 = 1,395.12 : x
2. Step 2: Convert to fraction form
   5,092.50/7,638.30 = 1,395.12/x
3. Step 3: Cross multiply
   5,092.50x = 7,638.30 × 1,395.12
4. Step 4: Simplify right side
   5,092.50x = 10,656,345.10
5. Step 5: Solve for x
   x = 10,656,345.10/5,092.50
6. Step 6: Final answer
   x = 2,092.56