Finding the Fourth Proportional to 4,978.41, 7,468.52 and 1,691.21

Step by Step Solution

1. Step 1: Write the proportion equation
   4,978.41 : 7,468.52 = 1,691.21 : x
2. Step 2: Convert to fraction form
   4,978.41/7,468.52 = 1,691.21/x
3. Step 3: Cross multiply
   4,978.41x = 7,468.52 × 1,691.21
4. Step 4: Simplify right side
   4,978.41x = 12,630,789.91
5. Step 5: Solve for x
   x = 12,630,789.91/4,978.41
6. Step 6: Final answer
   x = 2,537.11