Finding the Fourth Proportional to 2,054.81, 2,835.65 and 1,123.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,054.81 : 2,835.65 = 1,123.31 : x
2. Step 2: Convert to fraction form
   2,054.81/2,835.65 = 1,123.31/x
3. Step 3: Cross multiply
   2,054.81x = 2,835.65 × 1,123.31
4. Step 4: Simplify right side
   2,054.81x = 3,185,323.90
5. Step 5: Solve for x
   x = 3,185,323.90/2,054.81
6. Step 6: Final answer
   x = 1,550.18