Finding the Fourth Proportional to 4,948.86, 7,424.25 and 1,618.05

Step by Step Solution

1. Step 1: Write the proportion equation
   4,948.86 : 7,424.25 = 1,618.05 : x
2. Step 2: Convert to fraction form
   4,948.86/7,424.25 = 1,618.05/x
3. Step 3: Cross multiply
   4,948.86x = 7,424.25 × 1,618.05
4. Step 4: Simplify right side
   4,948.86x = 12,012,807.71
5. Step 5: Solve for x
   x = 12,012,807.71/4,948.86
6. Step 6: Final answer
   x = 2,427.39