Finding the Fourth Proportional to 3,436.32, 5,154.72 and 971.36

Step by Step Solution

1. Step 1: Write the proportion equation
   3,436.32 : 5,154.72 = 971.36 : x
2. Step 2: Convert to fraction form
   3,436.32/5,154.72 = 971.36/x
3. Step 3: Cross multiply
   3,436.32x = 5,154.72 × 971.36
4. Step 4: Simplify right side
   3,436.32x = 5,007,088.82
5. Step 5: Solve for x
   x = 5,007,088.82/3,436.32
6. Step 6: Final answer
   x = 1,457.11