Finding the Fourth Proportional to 1,118.04, 1,674.56 and 1,090.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,118.04 : 1,674.56 = 1,090.50 : x
2. Step 2: Convert to fraction form
   1,118.04/1,674.56 = 1,090.50/x
3. Step 3: Cross multiply
   1,118.04x = 1,674.56 × 1,090.50
4. Step 4: Simplify right side
   1,118.04x = 1,826,107.68
5. Step 5: Solve for x
   x = 1,826,107.68/1,118.04
6. Step 6: Final answer
   x = 1,633.31