Finding the Fourth Proportional to 3,439.69, 5,159.41 and 974.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,439.69 : 5,159.41 = 974.50 : x
2. Step 2: Convert to fraction form
   3,439.69/5,159.41 = 974.50/x
3. Step 3: Cross multiply
   3,439.69x = 5,159.41 × 974.50
4. Step 4: Simplify right side
   3,439.69x = 5,027,829.71
5. Step 5: Solve for x
   x = 5,027,829.71/3,439.69
6. Step 6: Final answer
   x = 1,461.71