Finding the Fourth Proportional to 1,570.37, 2,166.62 and 949.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,570.37 : 2,166.62 = 949.37 : x
2. Step 2: Convert to fraction form
   1,570.37/2,166.62 = 949.37/x
3. Step 3: Cross multiply
   1,570.37x = 2,166.62 × 949.37
4. Step 4: Simplify right side
   1,570.37x = 2,056,908.45
5. Step 5: Solve for x
   x = 2,056,908.45/1,570.37
6. Step 6: Final answer
   x = 1,309.83