Finding the Fourth Proportional to 4,978.26, 7,468.15 and 1,691.54

Step by Step Solution

1. Step 1: Write the proportion equation
   4,978.26 : 7,468.15 = 1,691.54 : x
2. Step 2: Convert to fraction form
   4,978.26/7,468.15 = 1,691.54/x
3. Step 3: Cross multiply
   4,978.26x = 7,468.15 × 1,691.54
4. Step 4: Simplify right side
   4,978.26x = 12,632,674.45
5. Step 5: Solve for x
   x = 12,632,674.45/4,978.26
6. Step 6: Final answer
   x = 2,537.57