Finding the Fourth Proportional to 2,662.47, 3,995.60 and 1,970.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,662.47 : 3,995.60 = 1,970.98 : x
2. Step 2: Convert to fraction form
   2,662.47/3,995.60 = 1,970.98/x
3. Step 3: Cross multiply
   2,662.47x = 3,995.60 × 1,970.98
4. Step 4: Simplify right side
   2,662.47x = 7,875,227.84
5. Step 5: Solve for x
   x = 7,875,227.84/2,662.47
6. Step 6: Final answer
   x = 2,957.87