Finding the Fourth Proportional to 3,440.69, 5,160.91 and 975.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,440.69 : 5,160.91 = 975.50 : x
2. Step 2: Convert to fraction form
   3,440.69/5,160.91 = 975.50/x
3. Step 3: Cross multiply
   3,440.69x = 5,160.91 × 975.50
4. Step 4: Simplify right side
   3,440.69x = 5,034,467.71
5. Step 5: Solve for x
   x = 5,034,467.71/3,440.69
6. Step 6: Final answer
   x = 1,463.21