Finding the Fourth Proportional to 2,077.76, 3,116.55 and 922.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,077.76 : 3,116.55 = 922.70 : x
2. Step 2: Convert to fraction form
   2,077.76/3,116.55 = 922.70/x
3. Step 3: Cross multiply
   2,077.76x = 3,116.55 × 922.70
4. Step 4: Simplify right side
   2,077.76x = 2,875,640.69
5. Step 5: Solve for x
   x = 2,875,640.69/2,077.76
6. Step 6: Final answer
   x = 1,384.01