Finding the Fourth Proportional to 3,439.83, 5,158.22 and 974.09

Step by Step Solution

1. Step 1: Write the proportion equation
   3,439.83 : 5,158.22 = 974.09 : x
2. Step 2: Convert to fraction form
   3,439.83/5,158.22 = 974.09/x
3. Step 3: Cross multiply
   3,439.83x = 5,158.22 × 974.09
4. Step 4: Simplify right side
   3,439.83x = 5,024,539.86
5. Step 5: Solve for x
   x = 5,024,539.86/3,439.83
6. Step 6: Final answer
   x = 1,460.69