Finding the Fourth Proportional to 1,646.82, 2,271.51 and 1,123.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,646.82 : 2,271.51 = 1,123.56 : x
2. Step 2: Convert to fraction form
   1,646.82/2,271.51 = 1,123.56/x
3. Step 3: Cross multiply
   1,646.82x = 2,271.51 × 1,123.56
4. Step 4: Simplify right side
   1,646.82x = 2,552,177.78
5. Step 5: Solve for x
   x = 2,552,177.78/1,646.82
6. Step 6: Final answer
   x = 1,549.76