Finding the Fourth Proportional to 2,767.71, 4,151.54 and 1,123.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,767.71 : 4,151.54 = 1,123.88 : x
2. Step 2: Convert to fraction form
   2,767.71/4,151.54 = 1,123.88/x
3. Step 3: Cross multiply
   2,767.71x = 4,151.54 × 1,123.88
4. Step 4: Simplify right side
   2,767.71x = 4,665,806.40
5. Step 5: Solve for x
   x = 4,665,806.40/2,767.71
6. Step 6: Final answer
   x = 1,685.80