Finding the Fourth Proportional to 2,618.62, 3,930.18 and 1,521.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,618.62 : 3,930.18 = 1,521.46 : x
2. Step 2: Convert to fraction form
   2,618.62/3,930.18 = 1,521.46/x
3. Step 3: Cross multiply
   2,618.62x = 3,930.18 × 1,521.46
4. Step 4: Simplify right side
   2,618.62x = 5,979,611.66
5. Step 5: Solve for x
   x = 5,979,611.66/2,618.62
6. Step 6: Final answer
   x = 2,283.50