Finding the Fourth Proportional to 2,618.01, 3,928.74 and 974.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,618.01 : 3,928.74 = 974.58 : x
2. Step 2: Convert to fraction form
   2,618.01/3,928.74 = 974.58/x
3. Step 3: Cross multiply
   2,618.01x = 3,928.74 × 974.58
4. Step 4: Simplify right side
   2,618.01x = 3,828,871.43
5. Step 5: Solve for x
   x = 3,828,871.43/2,618.01
6. Step 6: Final answer
   x = 1,462.51