Finding the Fourth Proportional to 2,046.80, 3,071.55 and 1,123.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,046.80 : 3,071.55 = 1,123.01 : x
2. Step 2: Convert to fraction form
   2,046.80/3,071.55 = 1,123.01/x
3. Step 3: Cross multiply
   2,046.80x = 3,071.55 × 1,123.01
4. Step 4: Simplify right side
   2,046.80x = 3,449,381.37
5. Step 5: Solve for x
   x = 3,449,381.37/2,046.80
6. Step 6: Final answer
   x = 1,685.26