Finding the Fourth Proportional to 2,957.82, 4,436.70 and 1,313.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,957.82 : 4,436.70 = 1,313.91 : x
2. Step 2: Convert to fraction form
   2,957.82/4,436.70 = 1,313.91/x
3. Step 3: Cross multiply
   2,957.82x = 4,436.70 × 1,313.91
4. Step 4: Simplify right side
   2,957.82x = 5,829,424.50
5. Step 5: Solve for x
   x = 5,829,424.50/2,957.82
6. Step 6: Final answer
   x = 1,970.85