Finding the Fourth Proportional to 3,439.32, 5,158.89 and 974.07

Step by Step Solution

1. Step 1: Write the proportion equation
   3,439.32 : 5,158.89 = 974.07 : x
2. Step 2: Convert to fraction form
   3,439.32/5,158.89 = 974.07/x
3. Step 3: Cross multiply
   3,439.32x = 5,158.89 × 974.07
4. Step 4: Simplify right side
   3,439.32x = 5,025,119.98
5. Step 5: Solve for x
   x = 5,025,119.98/3,439.32
6. Step 6: Final answer
   x = 1,461.08