Finding the Fourth Proportional to 2,081.77, 3,122.15 and 970.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081.77 : 3,122.15 = 970.49 : x
2. Step 2: Convert to fraction form
   2,081.77/3,122.15 = 970.49/x
3. Step 3: Cross multiply
   2,081.77x = 3,122.15 × 970.49
4. Step 4: Simplify right side
   2,081.77x = 3,030,018.31
5. Step 5: Solve for x
   x = 3,030,018.31/2,081.77
6. Step 6: Final answer
   x = 1,455.50