Finding the Fourth Proportional to 3,437.69, 5,155.92 and 971.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,437.69 : 5,155.92 = 971.96 : x
2. Step 2: Convert to fraction form
   3,437.69/5,155.92 = 971.96/x
3. Step 3: Cross multiply
   3,437.69x = 5,155.92 × 971.96
4. Step 4: Simplify right side
   3,437.69x = 5,011,322.22
5. Step 5: Solve for x
   x = 5,011,322.22/3,437.69
6. Step 6: Final answer
   x = 1,457.76