Finding the Fourth Proportional to 3,436.05, 5,153.51 and 970.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,436.05 : 5,153.51 = 970.31 : x
2. Step 2: Convert to fraction form
   3,436.05/5,153.51 = 970.31/x
3. Step 3: Cross multiply
   3,436.05x = 5,153.51 × 970.31
4. Step 4: Simplify right side
   3,436.05x = 5,000,471.67
5. Step 5: Solve for x
   x = 5,000,471.67/3,436.05
6. Step 6: Final answer
   x = 1,455.30